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Biology Term1 Test 2024

Total questions: 81

Worksheet time: 1hrs 16mins

Name
Class
Date
1.

Groups of different populations that live in a given area and interact are called a(n)...

a)

Community

b)

Colony

c)

Population

d)

Ecosystem

2.

What is the Competitive Exclusion Principle?

a)

The principle that states that competition is the natural order of things

b)

The principle that states that two species cannot live indefinitely having the same niche

c)

The principle that states that all resources are limiting

d)

The principle that states that species can coexist without competition

3.

What is an example of mutualism?

a)

Flowering plants producing nectar to attract pollinators

b)

Barnacles hitchhiking on gray whales

c)

Weeds competing with sunflowers for nutrients

d)

Sharks competing for water in the ocean

4.

Humans can be infected by tape worms. The tape worm gets a place to live in the intestines of the human. The human loses weight and nutrients due to the tape worm. This is an example of:

a)

Parasitism

b)

Mutualism

c)

Commensalism

d)

Predation

5.

What is the term used to describe the sum of all resources that a species uses in its environment?

a)

Habitat

b)

Niche

c)

Zone

d)

Territory

6.

Tree kangaroos live in the upper branches of trees in the rainforests of Queensland, as well as on the island of New Guinea. This is an example of the tree kangaroos ___.

a)

niche

b)

habitat

c)

community

d)

population

7.
A key stone species is...
a)
the top carnivore.
b)
has the largest population.
c)
has the most specialized niche.
d)
determines numbers and types of other species.
8.
The secondary succession is 
a)
lichens and mosses arrive on bare rock and begin to trap soil
b)
a complex, stable ecosystem is formed
c)
plants grow in an area devastated by a flood
d)
plants grow in a newly formed pond
9.
Primary succession is... 
a)
When a hurricane causes a river to flood its banks
b)
When a farmer ploughs his fields to remove all existing plant life.
c)
When fire burns through a forest and ills all vegetation less than 1m tall.
d)
When increasing temperature causes a glacier to recede from an area of rocky ground
10.
What type of succession is shown going from figure A to figure B?
a)
primary succession
b)
ecological succession
c)
secondary succession
d)
intermediate
11.
Starfish are considered ___ because if the species is negatively affected, it’s going to have a disproportionately greater effect on the whole ecosystem.
a)
a keystone species
b)
an invasive species
c)
an exotic species
d)
an introduced species
12.
When a pine tree grows real tall and blocks sunlight to another pine tree it is _______ competition.
a)
Interference
b)
Intraspecific
c)
Interspecific
d)
Exploitative
13.
What is the order of succession shown in this figure?
a)
A, B, C, D
b)
B, A, D, C
c)
C, D, A, B
d)
D, A, B, C
14.

What are pioneer species?

a)

The oldest species in an ecosystem.

b)

The first organisms to colonize a barren or disturbed area.

c)

Species that are on the verge of extinction.

d)

Species that only exist in tropical regions.

15.

What is a climax community?

a)

A climax community is a community that is only found in aquatic environments.

b)

A climax community is a community that is constantly changing and evolving.

c)

A climax community is a stable and mature community of plants and animals that has reached a state of equilibrium with its environment.

d)

A climax community is a temporary community of plants and animals.

16.

What happened to the grey wolf population in Yellowstone National Park in the early 1930s?

a)

Their numbers increased significantly

b)

Their numbers remained stable

c)

Their numbers dropped to zero

d)

Their numbers doubled

17.

How did the absence of wolves in Yellowstone National Park affect the behavior of elk?

a)

Elk became more cautious and nomadic

b)

Elk became less cautious and started overeating the autotrophs in the area

c)

Elk started hunting wolves

d)

Elk migrated to a different habitat

18.

What happened to the hunting habits of coyotes when wolves were reintroduced?

a)

They had to start hunting small prey, such as field rodents

b)

They started hunting bison

c)

They were wiped out by wolves

d)

They joined forces with the wolves

19.

How did the reintroduction of wolves affect the population of ravens in Yellowstone National Park?

a)

Raven populations decreased as wolves competed for food

b)

Raven populations increased due to more carcasses left by wolves

c)

Raven populations remained unaffected by the presence of wolves

d)

Ravens migrated to other areas due to the noise made by wolves

20.

Beavers returned to Yellowstone because...

a)

There were more trees. They like to build dams and eat trees. They build many habitats and niches for other animals

b)

They liked the warmer temperatures in the park because of climate change.

c)

They are carnivores and will eat the wolves.

d)

They are carnivores and will eat the elk.

21.

In the mid 1900's, the wolves of Yellowstone were deeply affected by humans and their population significantly decreased-- making them endangered, and eventually removing them completely from the Yellowstone ecosystem. The removal of wolves, the apex predator, caused what to happen to the biodiversity within Yellowstone?

a)

A trophic cascade affected the entire food web in Yellowstone, causing some trophic levels to experience decreases, and others to grow rapidly.

b)

Biodiversity increased when the wolves disappeared and more species were able to flourish without the wolves.

c)

A trophic cascade irreversibly ruined the ecosystem in Yellowstone--destroying biodiversity forever.

d)

The biodiversity of the park was not affected when the wolves were removed.

22.

What is the ecological range of tolerance?

a)

The range of conditions that an organism can endure before injury or death

b)

The range of conditions that humans can tolerate in their environment

c)

The range of conditions that specialists can tolerate in their habitat

d)

The range of conditions that generalists can tolerate in their habitat

23.

Zone where organisms cannot survive

a)

zone of intolorance

b)

range of tolerance

c)

optimal range

d)

zone of physiological stress

24.

Which species is an example of a generalist species?

a)

Raccoon

b)

Red panda

c)

Koala bear

d)

Panda bear

25.

Organisms with a ___________ gene pool have a __________ chance of surviving

a)

smaller, lesser

b)

larger,greater

c)

smaller, greater

d)

larger, smaller

26.

What is an invasive species?

a)

an organism that IS native to an area and causes harm to the environment/humans

b)

an organism that is NOT native to an area and causes harm to the environment/humans

c)

an organism that is NOT native to an area and helps the environment/humans

d)

an organism that IS native to an area and helps the environment/humans

27.

Which of the following would be most effective in slowing the loss of biodiversity?

a)

creating large parks/preserves in biodiversity hotspots

b)

requiring every country to maintain a seed bank

28.

Define ecosystem diversity

a)

variety of ecosystems in a given area

b)

variation of genes within a species or population in a given area

c)

variety of life in Earth's land, freshwater, and marine ecosystems

d)

changes to an ecosystem that affect how the parts of it interact

29.

A species that is likely to become extinct if protective measures are not taken immediately is known as

a)

threatened species

b)

endemic species

c)

keystone species

d)

endangered species

30.
How can humans best help an endangered species avoid extinction?
a)
they can feed the animals
b)
they can put the animals in a zoo
c)
they can protect the animal’s habitat
d)
they can take the animal to new habitats
31.
A large ecosystem is called a ______
a)
Ecosystem
b)
Habitat
c)
Biome
d)
Niche
32.

What are the main factors that separate the biomes?

a)

Land and Sea

b)

Water and Air

c)

Climate and Precipitation

d)

Longitude and Latitude

33.
Which of the following in an ecosystem is ABIOTIC?
a)
Sunlight
b)
Frog
c)
Scorpion
d)
Snake
34.

Characterized by an abundance of leaf bearing trees and 4 seasons

a)

Tropical Rainforest

b)

Temperate Deciduous Forest

c)

Taiga

d)

Tundra

35.

Needle bearing trees with long roots are abundant

a)

Tropical Rainforest

b)

Temperate Deciduous Forest

c)

Taiga

d)

Tundra

36.
Which major biome is home to cacti, mesquite, white thorn, pack rats, small reptiles, and coyotes?
a)
desert
b)
taiga
c)
tundra
d)
grassland
37.
Which biome contains large populations of grazing herbivores, few species of birds, and deep, rich soil?
a)

Boreal Forest

b)

Tundra

c)

Deciduous Forest

d)

Grassland

38.
What percentage of energy is passed on to each tropic level?
a)
10%
b)
50%
c)
90%
d)
100%
39.
Which represents the largest group in a food web?
a)
carnivores
b)
omnivores
c)
herbivores
d)
producers
40.
What is a diagram that shows the amount of energy available to each trophic level in an ecosystem?
a)
succession 
b)
cellular respiration
c)
energy pyramid
d)
biochemical cycle
41.
Consumer that eats animals or meat
a)
carnivore
b)
omnivore 
c)
consumer
d)
producer
42.
Use the diagram to answer the question.
What is a fitting description for this diagram?
a)
A Food Chain
b)
An Ecosystem
c)
A Food Web
d)
Biotic and Abiotic Factors
43.
Use the diagram to answer the question.
The Mayfly is a food source for which 3 organisms?
a)
Frog, Dragon Fly and snake
b)
Frog, trout and dragon fly
c)
Frog, salamander and trout
d)
Frog and phytoplankton
44.
Bacteria and fungi typically serve what role in an ecosystem?
a)
herbivore
b)
carnivore
c)
omnivore
d)
decomposer
45.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
46.
an animal that eats both plants and animals
a)
carnivore
b)
herbivore
c)
omnivore
d)
consumer
47.
An organism that eats another organism.
a)
Autotroph
b)
Heterotroph
c)
Plant
d)
Producer
48.
What are the two ways nitrogen gas is turned into a form plants and animals can use?
a)
lightning & bacteria
b)
bacteria & worms
c)
lightning  & worms
d)
bacteria & fungi
49.
The movement of matter through biotic and abiotic environment is called  ___
a)
matter cycling
b)
biogeochemical cycle
c)
photosynthesis
d)
carbon fixation
50.
The process where excess nitrogen and phosphorus enter a body of water causing overgrowth of aquatic plants and algae is called ______
a)
Eutrophication
b)
Acid Precipitation
c)
Nitrogen Fixation
d)
Decomposition
51.
Matter (C,H,N,O,P,S) ________ through the ecosystem in a variety of directions. Energy __________ through the ecosystem in one direction. 
a)
cycles, flows
b)
flows, cycles
c)
cycles, cycles
d)
flows, flows
52.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
53.
Which process converts carbon in the form of sugar into carbon dioxide gas?
a)
Bioremediation
b)
Photosynthesis
c)
Respiration
d)
Transpiration
54.

How is the carbon cycle similar to the water cycle?

a)

Both involve liquid substances falling to the Earth from the atmosphere?

b)

Neither process works at low temperature.

c)

Both involve the transfer of substances between animals, plants, and the Earth.

d)

Both involve the transfer of substances between the earth and outer space.

55.
What factor describes when populations increase because animals are moving into a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
56.
What does the graph represent?
a)
Emigration
b)
Exponential growth
c)
Immigration
d)
Logistic Growth
57.
Which limiting factor would increase due to the number of individuals in a population?
a)
Unusual weather
b)
Natural disaster
c)
Births
d)
Disease
58.
Which limiting factor is independent of the number of individuals in a population?
a)
competition
b)
parasitism/disease
c)
stress
d)
natural disasters
59.
What is the carrying capacity of the following graph?
a)
1000
b)
8000
c)
800
d)
600
60.
Which will add more organisms to a population? 
a)
5 animals die
b)
0 animals are born
c)
3 animals immigrate to the population
d)
2 animals emmigrate from the population
61.

As a population of a species increases within a territory, which of the following most likely also increases?

a)

Immigration

b)

Food supply

c)

Carrying capacity

d)

Competition

62.
The percentages of individuals found at different age levels make up the ______ of the population.
a)
carrying capacity
b)
age structure
c)
survivorship
d)
birthrate
63.
In Rwanda, there are more young children than teenagers, and more teenagers than adults. This age structure indicates a population that
a)
has stopped growing.
b)
will double in 30 years.
c)
has a steady growth rate.
d)
will decrease in 30 years.
64.
Demographic transition is change from high birthrates and high death rates to
a)
exponential growth.
b)
low birthrates and low death rates.
c)
low birthrates and high death rates.
d)
indefinite growth.
65.
Demography is the scientific study of
a)
parasitism and disease.
b)
modernized countries.
c)
human populations.
d)
none of these
66.

Name the type of pyramid in the picture.

a)

slow growth

b)

rapid growth

c)

zero growth

d)

negative growth

67.

The size of the human population began to increase exponentially after the

a)

bubonic plague

b)

development of plowing and irrigation

c)

Industrial Revolution

d)

development of the first cities.

68.

4 main types of carbon-based molecules found in living things.

a)
sugars, fats, amino acids, and vitamins
b)
sugars, fats, amino acids, and minerals
c)
sugars, fats, amino acids, and enzymes
d)
carbohydrates, lipids, proteins, and nucleic acids
69.

What are the 2 nucleic acids found in living things?

a)
DNA and RNA
b)
Protein and Lipid
c)
Carbohydrate and Lipid
d)
Protein and Carbohydrate
70.

What is the polymer of an amino acid?

a)
nucleic acid
b)
lipid
c)
carbohydrate
d)
protein
71.

What is the monomer of a carbohydrate?

a)
protein
b)
disaccharide
c)
monosaccharide
d)
polysaccharide
72.

What type of molecule is an enzyme?

a)
Nucleic acid
b)
Lipid
c)
Carbohydrate
d)
Protein
73.

What 2 conditions do enzymes depend on?

a)
pressure and concentration
b)
light and humidity
c)
size and color
d)
temperature and pH
74.

What is the function of the nucleic acid, DNA?

a)
regulate gene expression
b)
store and transmit genetic information
c)
synthesize proteins
75.
A _____ is something in the environment that causes an organism to respond.
a)
stimulus
b)
response
c)
cause
d)
effect
76.

The combination of chemical reactions through

which an organism builds up or breaks down

materials as it carries out its life processes is called ...

a)

absorption

b)

metabolism

c)

digestion

d)

consumption

77.

Identify the characteristic: a caterpillar hibernates in a cocoon and emerges as a butterfly.

a)

All living things adapt to their environment

b)

All living things use energy

c)

All living things respond to their environment

d)

All living things grow and develop

78.

Which of the following is an example of homeostasis?

a)

adapting to your environment

b)

maintaining an appropriate respiration rate

c)

the sum of all of your chemical reactions

d)

being composed of more than one cell

79.

The factors that stay the same throughout the experiment.

a)

Constant

b)

Dependent Variable

c)

Independent Variable

80.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.

What is the independent variable?

a)

Dropping the same way

b)

Wing Length

c)

Amount of time it takes the helicopter to hit the floor

d)

Dropping from the same height

81.

You are managing a large feed lot. A pharmaceutical company wants you to try a new antibiotic to treat shipping fever in newly arrived cattle. The company claims that it is more effective at a lower cost than your current antibiotic you are using. You will measure the temperature of the cattle to see whether or not it works. WHAT IS THE CONTROLGROUP?

a)

Type of cow

b)

Antibiotic

c)

No Antibiotic

d)

Temperature of Cattle

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