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WorksheetsLife Science Content Review
Total questions: 196
Worksheet time: 1hrs 5mins
Name
Class
Date
1.
_________ is a symbiotic relationship in which both species benefit.
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Predation
2.
A biologist is studying a biome that has very cold temperatures. A layer of this biome's soil stays frozen year-round. What biome is the biologist most likely studying?
a)
tundra
b)
temperate deciduous forest
c)
grassland
d)
coniferous forest
3.
A certain type of plant cannot survive in very wet areas. Which of the following biomes would best support this type of plant?
a)
semiarid desert
b)
temperate forest
c)
taiga
d)
tropical forest
4.
A cow is an example of
a)
a heterotroph.
b)
a predator.
c)
an autotroph.
d)
a producer.
5.
A farmer uses genetic engineering to inject dairy cows with a genetically altered hormone (GAH) to result in the production of more milk. What might be a risk of using this technology to produce milk?
a)
Use of the GAH may increase the amount of hormones in the milk.
b)
Use of the GAH may increase the availability of milk.
c)
Use of the GAH may provide extra milk to feed the poor.
d)
Use of the GAH may allow the farmer to reduce milk prices.
6.
A fight between a family of lions and family of hyenas over an animal carcass would be best described as competition between
a)
two different populations.
b)
a population and a community.
c)
a community and an ecosystem.
d)
two different communities.
7.
A grassland ecosystem (ecosystem X) supports 13 different grass species. A different grassland ecosystem (ecosystem Y) supports just one species of grass. Bison graze on all of the grass species in both of these ecosystems. A drought strikes both ecosystem X and ecosystem Y, but the bison in ecosystem X are better able to survive it. Which of the following is a likely explanation?
a)
Ecosystem X has a greater amount of biodiversity.
b)
The bison in ecosystem X only eat one species of grass.
c)
Ecosystem Y has a greater amount of biomass.
d)
Ecosystem Y has a greater amount of biodiversity.
8.
A habitat is:
a)
Where a species lives
b)
Interactions between species
c)
Resources in an ecosystem
d)
Nonliving things
9.
A new strain of rice was developed to be resistant to popular weed killers. What could be a negative outcome from the production of this new rice variety?
a)
If it accidentally spreads to areas where it is unwanted, it will be difficult to remove.
b)
The rice crops will be more productive due to less competition with other plants.
c)
Farmers will be able to spray weeds growing near the rice without worrying about killing the rice.
d)
There are no possible negative outcomes from this new strain of rice.
10.
A particular species of lizard lives underground for much of the day, escaping the heat. This species of lizard probably lives in a _____.
a)
desert
b)
ocean
c)
tundra
d)
deciduous forest
11.
A population is
a)
a group of organisms belonging to the same species that lives in a particular area.
b)
a group of closely-related organisms that lives in a particular area.
c)
the sum of all species living in a particular area.
d)
a group of organisms comprised of similar species that lives in a particular area.
12.
A rodent hibernates to escape the long, cold winter months of this biome. Which biome does the rodent live in?
a)
coniferous forest
b)
desert
c)
tropical rainforest
d)
fresh water
13.
A scientist wants to produce a cow that makes a particular human protein in its milk. The desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). Which of the following would be best for the scientist to use?
a)
genetic engineering
b)
selective breeding
c)
cloning
d)
genetic crosses
14.
A seed company in Mississippi produces genetically modified cotton seeds. What are some advantages to using genetically modified crops?
a)
all of these
b)
resistance to extreme weather
c)
resistance to pests
d)
increased crop production
15.
A spider builds its web in the branches of a tree, causing no damage to the tree. What type of relationship is there between the spider and the tree?
a)
commensalism
b)
mutualism
c)
parasitism
d)
predator-prey relationship
16.
A symbiotic relationship in which both species benefit is called ___________.
a)
mutualism
b)
Parasitism
c)
commensalism
d)
none of these
17.
A virus "infects" a cell when it lands on the outside of the cell and ____
a)
injects its genetic material into the cell
b)
eats proteins on the surface of the cell
c)
injects its proteins into the cell.
d)
remains there until the cell produces more viruses.
18.
A virus causes the common cold.
a)
true
b)
false
19.
All bacteria can be killed with common antibiotic drugs.
a)
false
b)
true
20.
All bacteria cause human illness.
a)
false
b)
true
21.
All scientists agree that viruses should be considered living things.
a)
false
b)
true
22.
An animal lays eggs with a tough, leathery, watertight shell. This adaptation would be best suited for which environment?
a)
desert
b)
boreal forest
c)
arctic
d)
rainforest
23.
An animal with long limbs, a long tail, and hand-like paws that can grab things would be best suited for which environment?
a)
rainforest
b)
desert
c)
savanna
d)
tundra
24.
An ecosystem is defined as
a)
a group of organisms and the habitat they share.
b)
the food chain in an area.
c)
a predator and prey relationship.
d)
the creation of carbohydrates by green plants.
25.
An organism makes glucose using energy from the Sun. The organism is a _______.
a)
producer
b)
primary consumer
c)
secondary consumer
d)
decomposer
26.
An organism that has adapted to live in cold, dry climates can be found in a _______ biome.
a)
tundra
b)
desert
c)
deciduous forest
d)
savanna
27.
Any area which an organism lives is part of the ______.
a)
biosphere
b)
abiotic area
c)
biome
d)
biotic factors
28.
As an animal grows, its mass increases. The matter that makes up this new mass comes mostly from
a)
food that the animal has eaten and changed into other compounds.
b)
compounds that the animal breaks down into water and carbon dioxide.
c)
substances that the animal has eaten but cannot digest.
d)
air and water that the animal changes into other compounds using the energy from sunlight.
29.
As impalas graze, birds perch on their backs and eat ticks from the impala's coats, preventing them from being bitten. This is an example of _____.
a)
mutualism
b)
commensalism
c)
parasitism
d)
all of these
30.
Bacteria are helpful in the production of certain medicines (insulin)
a)
true
b)
false
31.
Bacteria are made up of
a)
only one cell.
b)
five cells each.
c)
as many cells as a human.
d)
hundreds of cells.
32.
Bacteria are so small, and there are so many, that they cannot be killed.
a)
false
b)
true
33.
Bacteria can be used as a weapon.
a)
true
b)
false
34.
Bacteria have been used to produce human versions of
a)
insulin.
b)
nitrogen.
c)
milk.
d)
lactic acid.
35.
Bacteria help people by _____.
a)
all of these
b)
fomenting food
c)
digesting food
d)
making medicine
36.
Bacterial diseases are treated with what type of medicines?
a)
antibiotics
b)
cough syrup
c)
vaccines
d)
all of these
37.
Bacterial diseases cannot be transmitted from an animal to a human.
a)
false
b)
true
38.
Barnacles often attach to whales. The whale is unaffected, but the barnacle benefits from being given a place to live and a method of transportation to get to new food sources. This is an example of _____.
a)
commensalism
b)
mutualism
c)
parasitism
d)
all of these
39.
Biotechnology is a growing field of applied biology. Many crops, such as corn, have been engineered to be resistant to herbicides. Therefore, farmers can spray these chemicals to kill weeds growing near the crops without worries of killing the crop itself. How does this type of biotechnology work?
a)
by changing the genetic makeup of the crops
b)
by changing the location of the crops
c)
by causing the crops to kill the weeds
d)
by changing the type of crops used
40.
Biotic factors include water, soil, weather, humidity, and sunlight.
a)
false
b)
true
41.
Bison are grazers, living in herds that migrate in search of better pasture. Bison live in _____.
a)
grasslands
b)
freshwater biomes
c)
tropical rain forests
d)
deserts
42.
Brian lives in a biome that is very similar to a grassland. Trees spot the landscape of this biome. This biome has seasonal rains and stays warm year-round. What kind of biome does Brian most likely live in?
a)
coniferous forest
b)
desert
c)
savanna
d)
tropical rainforest
43.
Cacti have many adaptations that help minimize water loss and maximize water storage. They often grow in places that are extremely hot and dry. Which type of biome would likely provide the best climate for a cactus?
a)
desert
b)
tundra
c)
tropical rainforest
d)
estuary
44.
Carrying capacity is
a)
the number of organisms an ecosystem can support.
b)
anything that limits how many organisms can live in an ecosystem.
c)
how green plants make carbohydrates.
d)
The process of respiration.
45.
Cars, planes, and factories affect the carbon cycle by:
a)
Releasing more carbon than ecosystems can absorb
b)
Heating up their surroundings
c)
Producing energy
d)
Absorbing carbon from the ecosystems around them
46.
Choose the two foods produced with the help of bacteria.
a)
cheese and yogurt
b)
rice and millets
c)
ghee and oil
d)
cereal and milk
47.
Commensalism is
a)
when two organisms interact and one benefits with no harm or benefits to the other
b)
when two organisms interact and it is beneficial for both of them
c)
when two organisms interact and one benefits while one is harmed
d)
none of these
48.
Commensalism is a symbiotic relationship in which both species benefit.
a)
false
b)
true
49.
Commensalism is an antagonistic relationship in which one species benefits while the other species is poorly affected.
a)
false
b)
true
50.
Compared to other land biomes, which abiotic factors are most likely responsible for the number of trees found in forests?
a)
mild temperatures and abundant rainfall
b)
extremely hot temperatures and dry air
c)
extremely cold temperatures and abundant snow
d)
mild temperatures and strong winds
51.
Consumers get their energy:
a)
From eating other organisms
b)
Directly from sunlight
c)
By breathing
d)
All of these
52.
Covid 19 is a bacterial infection.
a)
false
b)
true
53.
Desert plants are most likely to have which adaptation?
a)
a thick, waxy covering to prevent evaporation
b)
large amounts of chlorophyll to capture more sunlight
c)
broad leaves to increase respiration and transpiration
d)
buttress roots to provide extra support to hold the plant up
54.
Diseases caused by bacteria include _______.
a)
tuberculosis
b)
hepatitis
c)
measles
d)
Huntington's disease
55.
Drugs that have been developed to kill bacteria are called ____.
a)
antibiotics
b)
aspirin
c)
antivirals
d)
antifungal
56.
During fermentation, bacteria turn milk sugars into
a)
lactic acid
b)
glucose
c)
carbon monoxide
d)
oxygen
57.
Ecology includes material and research from the field of
a)
all of these
b)
genetics
c)
geology
d)
physics
58.
Fermentation occurs in the absence of oxygen. Fermentation allows glycolysis, the first step of cellular respiration, to continue, producing 2 ATP in the process. Lactic acid is produced in certain types of fermentation. What is the waste product in this process?
a)
lactic acid
b)
glucose
c)
oxygen
d)
ATP
59.
Food poisoning can be prevented by cooking meat thoroughly and washing surfaces that have been in contact with raw meat.
a)
true
b)
false
60.
From 2009 to 2010, the number of cases of bacterial meningitis in West Africa was much higher than the number of cases in previous years. The outbreak of bacterial meningitis in West Africa is consistent with _______.
a)
an epidemic
b)
a blight
c)
a pandemic
d)
all of these
61.
How are bacteria linked to diabetes?
a)
The insulin produced by bacteria can be used to help treat people with diabetes.
b)
The bacteria can be injected into a person with diabetes and permanently cure him or her.
c)
E. coli bacteria are one of the main causes of the disease, diabetes.
d)
all of these
62.
How do plants obtain their energy?
a)
through photosynthesis
b)
through the air
c)
from animals
d)
from bacteria
63.
In ________, one species benefits while the other species is not affected.
a)
commensalism
b)
mutualism
c)
parasitism
d)
none of these
64.
In the selective breeding of cats, the parents of the offspring are chosen by
a)
a human
b)
the mother
c)
random chance
d)
the father
65.
In which biome are most farms in the central United States located?
a)
grassland
b)
tundra
c)
desert
d)
forest
66.
In which of the following biomes would you most likely find organisms that are adapted to limited water supplies?
a)
desert
b)
grassland
c)
marine
d)
forest
67.
In which of the following locations are bacteria often found?
a)
all of these
b)
in drinking water
c)
in the air and soil
d)
on and inside the human body
68.
In your gut, bacteria cells outnumber your own cells.
a)
true
b)
false
69.
Infectious agents, such as viruses, bacteria, and fungi, can all
a)
cause disease.
b)
live for long periods of time outside of a host.
c)
infect nonliving matter.
d)
all of these
70.
Influenza, strep throat, measles, and the common cold are all infectious diseases. Which of the following methods can be used to avoid getting infectious diseases?
a)
washing your hands before eating
b)
touching an infected keyboard
c)
sharing a drink only with family members
d)
petting a sick animal
71.
Is a virus a living thing?
a)
No
b)
Yes
72.
It is difficult for most plants to grow in sandy soil because
a)
the soil loses water too quickly.
b)
the soil is too acidic.
c)
the sand blocks the roots.
d)
the sand heats up too much.
73.
Kangaroos play an important role as grazing herbivores in many Australian grassland ecosystems. Similar grassland ecosystems around the world, such as those found in North America and southern Africa, most likely
a)
have different species that play the ecological role of grazing herbivore.
b)
contain the exact same animal species as those found in Australia.
c)
do not contain grazing herbivores of any species.
d)
contain carnivorous kangaroos that feed upon grazing herbivores.
74.
Lyme disease can be treated with
a)
antibiotics
b)
aspirin
c)
Advil
d)
anti-Lyme
75.
Lyme disease is caused by bacteria that are spread by ______.
a)
ticks
b)
spiders
c)
mosquitoes
d)
bats
76.
Many ecologists actually do their research in the field.
a)
true
b)
false
77.
Matter _____ ecosystems.
a)
Cycles around
b)
Flows out of
c)
Is found only in
d)
Stays in the same parts of
78.
Mites attach themselves to larger flying insects to get a "free ride". This is an example of parasitism.
a)
false
b)
true
79.
Most parasites kill their host.
a)
false
b)
true
80.
Mutualism is
a)
when two organisms interact and it is beneficial for both of them
b)
when two organisms interact and one benefits with no harm or benefits to the other
c)
when two organisms interact and one benefits while one is harmed
d)
none of these
81.
Mutualism is a non-symbiotic relationship in which no species gets any benefits from the relationship.
a)
false
b)
true
82.
Name a symbiotic relationship in which one species is benefited while the other species is harmed.
a)
parasitism
b)
mutualism
c)
commensalism
d)
none of these
83.
On the savanna, grasses grow on the ground, and there are numerous shrubs and trees with leaves higher up. Which animal is best adapted for feeding on the leaves of the trees?
a)
giraffe
b)
lion
c)
hyena
d)
zebra
84.
One way organisms interact with each other is by eating other organisms.
a)
true
b)
false
85.
Parasites usually kill their host.
a)
false
b)
true
86.
Photosynthesis is a process that
a)
green plants use to produce food.
b)
animals use to breathe.
c)
predators use to catch their prey.
d)
illustrates symbiosis.
87.
Pickles and cheese on a cheeseburger are both made with the help of bacteria.
a)
true
b)
false
88.
Sabrina has the flu. Sabrina's neighbor suggests that she get a prescription for an antibiotic, but Sabrina's mother says that antibiotics would not help in this situation. Why?
a)
The flu is caused by a virus, and it cannot be treated with an antibiotic.
b)
The flu is caused by a parasitic worm, and it must be treated with an antihelmintic medication.
c)
The flu is caused by a bacterium, and it cannot be treated with an antibiotic.
d)
The flu is caused by a fungus, and it must be treated with an antifungal medication.
89.
Salmonella bacteria are ______.
a)
known to cause food poisoning
b)
not able to be killed with antibiotics
c)
used as biological weapons
d)
beneficial bacteria
90.
Scientists at a drug company have just developed a new treatment for viral meningitis. What should the scientists do before doctors prescribe the drug to their patients?
a)
gather data about the drug's safety and effectiveness
b)
test the drug against an infectious bacterium
c)
try the drug out on themselves first
d)
give the drug to the public for free to see it if works
91.
Scientists in the late twentieth century took a gene from Bacillus thuringiensis and inserted it into specimens of Agrobacterium tumefaciens. Genetic material from the Agrobacterium tumefaciens specimens was then inserted into cotton plants. The goal of these tests was to reduce caterpillar infestation in the cotton plants. These tests are an example of
a)
genetic modification.
b)
natural selection.
c)
meiotic cell division.
d)
creating purebred species.
92.
Some clownfish live in sea anemones. The clownfish clean the anemones, while the anemones provide protective homes for the clownfish. This is an example of _________.
a)
mutualism
b)
commensalism
c)
parasitism
d)
predator-prey relationship
93.
Spider monkeys live in a biome with many trees. They move around by swinging from tree to tree. Spider monkeys do not build a nest or take shelter in a cave. Instead, they sleep high up in a tree on a wide branch. Spider monkeys mostly eat fruits and nuts. What type of biome do spider monkeys most likely live in?
a)
tropical rainforest
b)
polar ice
c)
savanna
d)
desert
94.
Strep throat is a bacterial infection.
a)
true
b)
false
95.
Symbiosis is
a)
a relationship between organisms
b)
a type of parasitism
c)
a type of mutualism
d)
a type of commensalism
96.
The Amazon rainforest is located in South America. Mammalian consumers in the Amazon include jaguars, howler monkeys, and three-toed sloths. The Daintree rainforest is located in Australia. Mammalian consumers in the Daintree rainforest include bandicoots, wallabies, and possums. Based on this information, it can be concluded that
a)
different species can play similar ecological roles in similar ecosystems.
b)
every rainforest on Earth contains the same mammalian consumers.
c)
different species can never play similar ecological roles.
d)
the same mammalian species can be found in every ecosystem on Earth.
97.
The carbon cycle is a complex series of processes through which all of the carbon atoms on Earth move through the planet's organisms, atmosphere, ocean, and solid rock. As demonstrated by the carbon cycle, matter on Earth is generally
a)
recycled continually through the spheres of the Earth.
b)
released into space once it reaches the atmosphere.
c)
absorbed into the Earth's core where it can no longer be used.
d)
created and destroyed by the basic life processes of organisms.
98.
The carbon that plants need for photosynthesis comes from
a)
carbon dioxide gas in the atmosphere.
b)
carbon molecules that the plant produces.
c)
carbon atoms from the breakdown of food.
d)
carbon molecules dissolved in water.
99.
The clownfish protects the anemone from anemone-eating fish, and the stinging tentacles of the anemone protect the clownfish from predators. This is an example of _____.
a)
mutualism
b)
commensalism
c)
parasitism
d)
friendship
100.
The flu virus can be found on surfaces, such as tabletops and doorknobs, that have made contact with an infected individual's nasal secretions. Salmonella is a bacteria that can be found in food, where it can cause food poisoning. Fungi can live in many different environments, including locker rooms, where they can cause athlete's foot or ringworm. Based on this information, it is possible to conclude that
a)
humans are constantly interacting with other organisms that can cause disease.
b)
there are no substances available that can kill disease-causing organisms.
c)
disease-causing organisms are more likely to be present in food than anywhere else.
d)
humans should avoid receiving vaccinations to prevent disease.
101.
The harp seal lives on the polar ice sheets. Which adaptation makes it best suited for this environment?
a)
excess body fat
b)
ears
c)
whiskers
d)
large eyes
102.
The parasite feeds on
a)
the host
b)
the ectoparasite
c)
the endoparasite
d)
the producer
103.
The parts of an environment that are not living are called _____________.
a)
abiotic factors
b)
biomes
c)
photosynthesis
d)
biotic factors
104.
The relationship between a carnivore and an herbivore can be stated as
a)
predator and prey
b)
parasite and host
c)
prey and predator
d)
scavenger and parasite
105.
The relationships a population has with others in its community are:
a)
Sometimes harmful and sometimes beneficial
b)
Always harmful
c)
Always beneficial
d)
Neither harmful nor beneficial
106.
The Savannah is a hybrid domestic cat breed. It is the result of selectively breeding domestic cats with African servals in order to produce the signature color markings and large size. Not all, but many of these Savannah cats are able to successfully reproduce with other domestic cats. What could be a long-term effect of this type of selective breeding?
a)
It could change the genetic makeup of the entire domestic cat species.
b)
Domestic cats could eventually evolve into servals.
c)
Other cat breeds could evolve to mimic the markings of the serval.
d)
Servals could eventually evolve into domestic cats.
107.
The scientific study of interactions among/between organisms and their environment is called ________.
a)
Ecology
b)
Biology
c)
Psychology
d)
Geology
108.
The snake obtains its energy from
a)
the mouse
b)
water
c)
the sun
d)
the tree
109.
The snow hare lives on snow-covered mountaintops. Big cats such as the mountain lion and lynx hunt the snow hare for food. Which adaptation best suits the snow hare for its environment?
a)
white fur
b)
small tail
c)
big ears
d)
blue eyes
110.
The study of how living organisms interact with each other and their environment is __________.
a)
ecology
b)
the biomes
c)
the biosphere
d)
biotic
111.
The sudden outbreak of a disease can be classified as an epidemic or a pandemic depending on
a)
whether the outbreak is isolated to a region or widespread.
b)
whether anyone has died from the disease or not.
c)
whether a virus or bacterium caused the initial outbreak.
d)
whether the disease is transmitted by air or by direct contact.
112.
The worst symbiotic relationship is one in which neither organism benefits.
a)
false
b)
true
113.
There are many factors that influence the number of different kinds of plants in a biome. Why is elevation, or height, a factor that influences what kinds of plants can live in any certain biome on Earth?
a)
The elevation helps to determine the temperature of the biome.
b)
Elevation determines whether the plants get enough sunlight.
c)
The elevation determines whether people can see and enjoy the plants.
d)
Elevation does not influence what types of plants can grow in a certain biome.
114.
Tropical rainforests have more kinds of plants and animals than any other land biome. Which of the following is a biotic factor in a tropical rainforest?
a)
a population of decomposers
b)
the region's air quality
c)
the average amount of rainfall
d)
a stream running through the forest
115.
Tuberculosis affects the ______, and can be fatal.
a)
lungs
b)
muscles
c)
heart
d)
brain
116.
Using current genetic engineering techniques can provide potential benefits for parents, including
a)
conceiving a child who is a bone marrow match to a living child.
b)
producing only children with blonde hair.
c)
cloning a parent to produce a child identical to the parent.
d)
eliminating all genetic diseases from their child.
117.
Viruses can evolve.
a)
true
b)
false
118.
Viruses cause which of the following human diseases?
a)
the flu, AIDS, and cold sores
b)
the flu, AIDS and Bubonic Plague
c)
the flu, AIDS and athlete's foot
d)
AIDS, cold sores and athlete's foot
119.
Viruses, bacteria, fungi, and parasites are all different types of infectious agents that may cause disease. What do these agents have in common?
a)
They can all be spread from one organism to another.
b)
They can all be prevented with a vaccine.
c)
They can all be treated with an antibiotic.
d)
all of these
120.
We need bacteria to survive.
a)
true
b)
false
121.
What do decomposers leave behind after getting their energy?
a)
elements like carbon, nitrogen and phosphorus
b)
chlorophyll and vitamins
c)
energy-rich carbohydrates
d)
carbon dioxide and water molecules
122.
What does a virus use from a host cell to replicate?
a)
ATP, ribosomes, enzymes
b)
ATP, DNA, RNA
c)
ATP, ribosomes, DNA
d)
DNA, ribosomes, enzymes
123.
What is a producer's job in an ecosystem?
a)
to make food and oxygen for animals
b)
to help plants grow
c)
to break down dead plants and animals
d)
to eat plants and other animals and produce carbon dioxide
124.
What is a scavenger?
a)
An organism that feeds on dead matter
b)
an organism that lives in or on another organism
c)
an organism that produces food from the energy in sunlight
d)
organisms that eat plants and grasses
125.
What is an ecosystem?
a)
a community of organisms that interact with their environment.
b)
the pattern of weather that affects a particular area
c)
the life cycle of a plant, from seed to flower
d)
all living things in a particular environment, like a forest or a desert
126.
What is the correct order for this food chain?
a)
grass, antelope, lion
b)
grass, lion, bacteria
c)
antelope, lion, grass
d)
antelope, bacteria, grass
127.
What is the difference between a biotic factor and an abiotic factor?
a)
Biotic factors are living things and abiotic factors are non-living things.
b)
Biotic factors include elements like weather and temperature, while abiotic factors produce carbon dioxide and oxygen.
c)
Biotic factors exist in an ecosystem, but abiotic factors do not.
d)
Biotic factors are non-living things and abiotic factors are living things.
128.
What is the general term for any close long-term relationship between different species?
a)
symbiosis
b)
mutualism
c)
commensalism
d)
parasitism
129.
What is the type of symbiotic relationship where only one species benefits and another gets harmed?
a)
parasitism
b)
mutualism
c)
commensalism
d)
predator-prey relationship
130.
What process is used when placing a foreign gene into bacteria?
a)
transformation
b)
transduction
c)
translation
d)
transcription
131.
What type of organism would most likely live in a temperate forest?
a)
an organism that needs lots of water to survive
b)
an organism that does not need water to grow
c)
an organism that requires very cold temperatures
d)
an organism that requires very hot, dry surroundings
132.
What type of relationship exists between the ostrich and the zebra?
a)
mutualism
b)
parasitism
c)
commensalism
d)
predator-prey relationship
133.
What type of relationship involves an organism using another for transportation or housing?
a)
commensalism
b)
mutualism
c)
parasitism
d)
all of these
134.
What would happen if there were no abiotic factors in an ecosystem?
a)
Plants would be unable to grow and produce oxygen for the animals.
b)
The ecosystem would get too much rain.
c)
Animals would grow and flourish.
d)
Bacteria would become the consumer instead of the decomposer.
135.
When an organism from one trophic level of a food chain is eaten by the organism at the next level up the chain, an average of about 10% of the energy from the first organism is available for use by the next organism. Where does the other 90% go at each level?
a)
It is used up by the previous organism or lost as heat.
b)
It is left as waste on the ground.
c)
It is destroyed when the organism is eaten.
d)
No one knows where most of the energy goes.
136.
When the algae die, they sink to the bottom of the Gulf, where bacteria use much of the oxygen in the water to decompose the algae. Marine organisms trying to live in the water may not get enough oxygen to survive. Based on this description, which of the following is true?
a)
Abiotic factors, such as the amount of nutrients available, significantly affect the survival of organisms in their environment.
b)
The supply of any abiotic factor supports or limits growth of all organisms in an ecosystem in the same way.
c)
Biotic factors, such as the number of producers present, play the largest role in the survival of organisms in an ecosystem.
d)
The number of organisms of each type in an ecosystem depends on biotic factors but not on abiotic factors.
137.
Where does the energy in most ecosystems originate?
a)
Sunlight
b)
Producers
c)
Water
d)
Air
138.
Which are abiotic factors?
a)
sunlight, climate, water, and air
b)
sunlight, temperature, soil, and bacteria
c)
temperature, soil, water, and flowers
d)
sunlight, climate, water, and insects
139.
Which are human diseases caused by a virus?
a)
all of these
b)
the flu and the common cold
c)
rabies
d)
AIDS
140.
Which best defines ecology?
a)
The study of the interaction between living and nonliving factors in an environment
b)
The measure of the number of all the organisms in an area.
c)
A study of how humankind has changed the environment.
d)
The study of organisms, from cells to systems.
141.
Which biome is likely to have the greatest number of trees per unit of area?
a)
forest
b)
desert
c)
grassland
d)
tundra
142.
Which choice refers to a single population?
a)
zebras
b)
animals
c)
plants
d)
water
143.
Which diseases are caused by bacteria?
a)
all of these
b)
strep throat
c)
pneumonia
d)
leprosy
144.
Which domain do viruses belong to?
a)
Viruses do not belong to any domain.
b)
Eukarya
c)
Bacteria
d)
Archaea
145.
Which ecosystem would be affected the most by losing its butterflies, and why?
a)
An ecosystem that has fewer kinds of plants, animals, and insects.
b)
An ecosystem that has more plants that depend on the butterfly.
c)
An ecosystem that has more kinds of plants, animals, and insects.
d)
An ecosystem that has fewer plants that depend on the butterfly.
146.
Which event might disrupt a stable ecosystem?
a)
An invasive species enters the environment.
b)
Green plants use chlorophyll to produce food.
c)
Consumers eat producers.
d)
Predators kill prey.
147.
Which human job is most similar to the role of a producer?
a)
Energy plant worker
b)
Business entrepreneur
c)
Waste management specialist
d)
Restaurant critic
148.
Which is a biotic factor within an ecosystem?
a)
carnivores that consume other animals
b)
the amount of oxygen in the air
c)
the amount of sunlight a plant receives
d)
the space an animal has to live
149.
Which is an example of a parasite and host relationship?
a)
a tapeworm and a human
b)
a chlorophyll and a green plant
c)
a wolf and a rabbit
d)
sunlight and green plants
150.
Which is the best definition of a virus?
a)
A non-living particle consisting of RNA or DNA surrounded by a protein coat.
b)
A living particle consisting of protein surrounded by a DNA or RNA coat.
c)
A living particle consisting of RNA or DNA surrounded by a protein coat
d)
A non-living particle consisting of RNA or DNA surrounded by a DNA coat.
151.
Which is the best reason why it is extremely important for your health to take antibiotics exactly as your doctor prescribes them?
a)
The bacteria the antibiotics are prescribed to kill may become resistant to that antibiotic if it is not taken correctly
b)
It is disrespectful to ignore your doctor's instructions
c)
Bacteria will metabolize antibiotics that are not taken as prescribed
d)
None of these
152.
Which level of an energy pyramid will be able to support the greatest number of organisms?
a)
producers
b)
secondary consumers
c)
primary consumers
d)
tertiary consumers
153.
Which list is in order from most narrow to the broadest?
a)
organism, population, community, ecosystem
b)
organism, community, ecosystem, population
c)
organism, community, population, ecosystem
d)
community, organism, population, ecosystem
154.
Which nutrient does bacteria recycle?
a)
nitrogen
b)
vitamin C
c)
vitamin D
d)
ATP
155.
Which of the following are biotic factors in an ecosystem?
a)
plants, animals, and bacteria
b)
rain, sunlight, and plants
c)
temperature, animals, and plants
d)
animals, minerals in the soil, and rain
156.
Which of the following best describes a major difference between bacteria and viruses?
a)
Viruses cannot survive without a living host, whereas bacteria can often live and grow outside of the human body.
b)
Bacteria can cause infections in the human body, whereas there are no types of viruses that can cause infections.
c)
Bacteria cannot survive without a living host, whereas viruses can often live and grow outside of the human body.
d)
Viruses can cause infections in the human body, whereas there are no types of bacteria that can cause infections.
157.
Which of the following best describes an ecosystem?
a)
all the living organisms in an area and their physical surroundings
b)
all the living organisms in an area
c)
a region with a distinct climate
d)
all the living organisms of the same species throughout the world
158.
Which of the following biomes likely has the thinnest layer of topsoil?
a)
desert
b)
deciduous forest
c)
tropical rainforest
d)
grassland
159.
Which of the following correctly shows the cycle of biotic factors in an ecosystem?
a)
Plants produce food and oxygen; animals eat the plants, breathe the oxygen, and produce carbon dioxide; and bacteria break down dead plants and animals and produce minerals that help plants grow.
b)
Plants produce food and oxygen; bacteria eat the plants, breathe the oxygen, and produce carbon dioxide; and animals break down dead plants and produce minerals that help plants grow.
c)
Bacteria produce food and oxygen; animals eat the plants, breathe the oxygen, and produce carbon dioxide; and plants break down dead animals and produce minerals.
d)
Animals produce food and oxygen; bacteria eat the plants, breathe the oxygen, and produce carbon dioxide; and plants break down dead animals and produce minerals.
160.
Which of the following cows would a dairy farmer most likely choose to reproduce?
a)
a cow that makes a lot of milk
b)
a cow that can run quickly
c)
a cow with thick, soft fur
d)
a cow with large, strong hooves
161.
Which of the following depicts only the biotic factors of a rainforest?
a)
frogs, birds, and trees
b)
soil, lake, and rain
c)
lake, fish, and insects
d)
all of these
162.
Which of the following do viruses and fungi have in common?
a)
Some types of both viruses and fungi can cause infections in humans.
b)
All viruses and fungi cause congestion, fever, cough, and a sore throat.
c)
There are no viruses or fungi that can cause infections in humans.
d)
All viruses and fungi can be contracted by walking barefoot in damp areas.
163.
Which of the following is a type of symbiosis?
a)
all of these
b)
mutualism
c)
commensalism
d)
parasitism
164.
Which of the following is an example of a biological weapon?
a)
anthrax
b)
antararax
c)
anaphase
d)
antibiothrax
165.
Which of the following is an example of a parasite?
a)
A mosquito that feeds on the blood of a deer.
b)
A bee that feeds on the nectar of a flower.
c)
An egret that eats bugs off a cow.
d)
A squirrel that receives shelter from an oak tree.
166.
Which of the following is associated with the use of genetic engineering to clone farm animals?
a)
all of these
b)
There is controversy associated with cloning farm animals.
c)
Cloning could improve the availability of food in some areas.
d)
The success rate for animal cloning is currently low.
167.
Which of the following is NOT a type of symbiosis?
a)
Predation
b)
Parasitism
c)
Mutualism
d)
Commensalism
168.
Which of the following is the best example of a population?
a)
a school of sunfish
b)
a warm, humid climate with plenty of rainfall
c)
a nest of mockingbirds, some bullfrogs, a pond, and a sandy shore
d)
bees and wasps around a group of purple cornflowers
169.
Which of the following lists includes only abiotic factors?
a)
temperature, water, nutrients, sunlight
b)
animals, plants, fungi, protists
c)
temperature, cells, nutrients, sunlight
d)
animals, water, nutrients, sunlight
170.
Which of the following lists includes only producers in the food web?
a)
berries, algae, grass
b)
algae, mayfly, deer
c)
coyote, grizzly bear, trout
d)
grass, grizzly bear, deer
171.
Which of the following medical treatments would cause changes to the genetic material of the patient?
a)
replacing a malfunctioning gene with a healthy copy
b)
replacing the blood in the body via transfusions
c)
providing drugs to increase oxygen levels in the blood
d)
targeting and killing sickle cells
172.
Which of the following microbes cannot reproduce unless it first infects a cell in a host organism?
a)
viruses
b)
parasites
c)
bacteria
d)
protozoa
173.
Which of the following might be found in a freshwater ecosystem?
a)
All of these
b)
Water-dwelling bacteria
c)
Interactions among fish
d)
Rocks and shells
174.
Which of the following statements about viruses is true?
a)
Viruses are not considered living things.
b)
Viruses do not evolve.
c)
Viruses are made of cells.
d)
Viruses do not contain genetic information.
175.
Which of the following statements describes a food web?
a)
Energy flows from producers and consumers to decomposers.
b)
Energy flows from consumers to decomposers and from decomposers to consumers.
c)
Energy flows from producers, consumers, and decomposers to the Sun.
d)
Energy flows directly from the Sun to consumers.
176.
Which of the following statements is supported by our understanding of energy flow through ecosystems?
a)
Matter and energy can change forms and locations in ecosystems.
b)
Matter can change forms, but only one kind of energy exists.
c)
Matter and energy must always remain in the same form and location.
d)
Energy can change forms, but only one kind of matter exists.
177.
Which of the following statements is true?
a)
There are more herbivores than carnivores.
b)
There are more omnivores than herbivores.
c)
There are an equal number of herbivores and carnivores.
d)
There are more carnivores than herbivores.
178.
Which of the following types of symbiosis occurs when two organisms interact and it is beneficial for both of them?
a)
mutualism
b)
commensalism
c)
parasitism
d)
all of these
179.
Which of the following types of symbiosis occurs when two organisms interact and one benefits while the other is harmed?
a)
parasitism
b)
commensalism
c)
Mutualism
d)
none of these
180.
Which of the following types of symbiosis occurs when two organisms interact and one benefits with no harm to the other?
a)
commensalism
b)
mutualism
c)
parasitism
d)
none of these
181.
Which of these gives an example of the influence of location on what kinds of organisms can survive in a biome?
a)
A pine tree grows well in a taiga evergreen forest in Canada, while a barrel cactus grows well in a desert in Arizona.
b)
A person removes a cactus from a desert in Nevada and plants it in his yard in a nearby desert area.
c)
About 300 species of birds live in the taiga in the summer.
d)
A caribou that lives in a taiga ecosystem occasionally wanders north into the tundra.
182.
Which of these is a substance or compound that kills or inhibits bacteria?
a)
an antibiotic
b)
a germ
c)
a vaccine
d)
a microorganism
183.
Which of these is used in modern medicine to strengthen the body's immune system against harmful microorganisms?
a)
vaccines
b)
surgical casts
c)
aspirin
d)
brain transplants
184.
Which population of organisms has the least available energy?
a)
hawks
b)
grass
c)
grasshoppers
d)
snakes
185.
Which shows the correct path of how energy flows in a food chain?
a)
producer, consumer, predator, decomposer
b)
symbiosis, producer, prey, decomposer
c)
consumer, predator, carnivore, herbivore
d)
niche, consumer, decomposer, chlorophyll
186.
Which sign best represents the role of decomposers?
a)
a recycling triangle
b)
a stop sign
c)
a speed limit sign
d)
a danger ahead sign
187.
Which statement about microorganisms is true?
a)
They all exhibit different forms and sizes.
b)
They can all be seen with the naked eye.
c)
They are all multicellular.
d)
They are all capable of making their own food.
188.
Which type of symbiotic relationship exists when one species benefits while the other species is not affected?
a)
commensalism
b)
mutualism
c)
parasitism
d)
none of these
189.
Which type of symbiotic relationship is present when a hookworm lives inside a host causing the host pain?
a)
parasitism
b)
mutualism
c)
commensalism
d)
all of these
190.
While studying a strain of infectious bacteria, scientists find that a certain chemical stops the bacteria from multiplying. They develop a drug that contains the chemical. Before releasing the drug for widespread use, which of the following should the scientists do to learn more about how the drug works?
a)
all of these
b)
observe the drug's effects on the bacteria with a microscope
c)
study how the drug affects people in an experimental trial
d)
use a computer model to predict the action of the drug
191.
Why are animals important to an ecosystem?
a)
They produce carbon dioxide.
b)
They produce oxygen.
c)
They eat bacteria.
d)
They help break down dead plants.
192.
Why are there very few organisms toward the top of an energy pyramid?
a)
There is much less energy available at the top of the pyramid.
b)
Organisms at the top of the pyramid can only generate energy directly from the sun.
c)
Organisms at the top of the pyramid are preyed upon by many other organisms.
d)
There is too much energy available at the top of the pyramid.
193.
Within ecosystems, energy generally flows from
a)
primary consumers to secondary consumers.
b)
secondary consumers to primary consumers.
c)
primary consumers to producers.
d)
all of these
194.
Yogurt is made with the help of bacteria.
a)
true
b)
false
195.
Which of the following is an agricultural use of bacteria? (2 correct answers)
a)
pest control
b)
nutrient recycling
c)
waste disposal
d)
biogas production
196.
What beneficial role do bacteria play in the human body? (2 correct answers)
a)
help digest food
b)
make vitamins
c)
produce hemoglobin
d)
regulate plasma
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