wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Environmental Science Semester 1 Final Exam 2022-2023

Total questions: 206

Worksheet time: 5hrs 34mins

Name
Class
Date
1.

How do you "win" at natural selection?

a)

survive

b)

go extinct

c)

survive & reproduce

2.
Survival of the Fittest and Evolution were proposed by what scientist?
a)
Charles Darwin
b)
Albert Einstein
c)
Steven Hawking
d)
Isaac Newton
3.

What word describes a trait that helps an organism survive in its environment?

a)

natural selection

b)

mutation

c)

camouflage

d)

adaptation

4.
Change over time
a)
Natural Selection
b)
Selective Breeding
c)
Homeostasis
d)
Evolution
5.
Dogs such as Chihuahuas are examples of....
a)
Artificial Selection 
b)
Natural Selection 
c)
Mutations 
6.

Natural Selection is driven by a change in the environment and survival of the

a)

Earth

b)

Fastest

c)

Fittest

d)

Biggest

7.
Where the better adapted organisms survive to pass traits along to offspring.
a)
Evolution
b)
Natural Selection
c)
Extinction
d)
Artifical Selection
8.
Why are advantageous traits more likely to be passed onto offspring?
a)
Because they are more likely to survive and reproduce.
b)
Because they come from dominant alleles.
c)
Because they come from recessive alleles.
d)
Because the trait is an acquired phenotype.
9.
The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?
a)
Dark moth
b)
Light moth
c)
Both will be equally successful
d)
Neither will be successful
10.
Why is the mouse population changing over time?
a)
The light mice can reproduce more successfully than the dark mice
b)
The hawks eat more dark mice than light mice because the dark mice taste better
c)
The hawks eat more light mice than dark mice because they can see the light mice more easily
d)
The hawks eat more dark mice than light mice because they can see the dark mice more easily
11.
Do organisms "decide" to evolve and change?
a)
Yes, they know they need to change to survive 
b)
No, they change because of natural selection
12.
Almost all adaptations started off as?
a)
selective breeding
b)
physiological
c)
structural
d)
mutation
13.
In recent years "SuperBugs" (bacteria that aren't effected by antibiotics) are becoming more and more common. How could natural selection explain this?
a)
Superbugs survive antibiotics and reproduce
b)
Antibiotics cause bacteria to become superbugs
c)
We have always had the same amount of superbugs; modern media just discusses them more.
d)
There is no reliable data on the origin of super bugs.
14.
Humans have been a very successful species on earth.  They have very large, very diverse populations spread all around the world. As a result,
a)
Human have very limited ability to adapt to changes in the environment.
b)
Young humans have lower survival rates as compared to other species.
c)
Humans have a potential to adapt to various environmental changes.
d)
All humans are more disease resistant.
15.
A group of orangutan have become very similar after a series of drastic changes in their environment.  This similarity is likely the result of
a)
selective breeding
b)
random mutaion
c)
inbreeding
d)
natural selection
16.
Evolution works by 
a)
individuals changing to suit their environment
b)
Individuals learned new traits and pass them on
c)
sudden change in the environment cause a species change 
d)
small changes pass down through many generations
17.
Why are advantageous traits more likely to be passed onto offspring?
a)
Because they are more likely to survive and reproduce.
b)
Because they come from dominant alleles.
c)
Because they come from recessive alleles.
d)
Because the trait is an acquired phenotype.
18.

Natural selection is where ___________ decides which traits should be passed on

a)

Nature

b)

A human

c)

Charles Darwin

d)

The illuminati

19.

In a cold environment what are some traits that could increase fitness? Select all that apply.

a)

thick blubber

b)

thick fur

c)

thin fur

d)

wings

20.

What is a trait?

a)

a color

b)

the quality or characteristic of an organism

c)

the DNA of an organism

d)

when mutatuons cause extra limbs.

21.

Why are some traits more common in some populations?

a)

It is random

b)

organims choose their traits

c)

common traits are usually adaptive and help organisms survive and reproduce

d)

organisms traits change all the time

22.

Why are advantageous traits more likely to be passed onto offspring?

a)

Because they are more likely to survive and reproduce.

b)

Because they come from dominant alleles.

c)

Because they come from recessive alleles.

d)

Because the organism knew it needed that trait, survives, and passes it on.

23.

Mutations are a change in what?

a)

DNA

b)

tRNA

c)

protein

d)

rRNA

24.
The differences among a species, like different bird beaks, are called
a)
genes.
b)
variations.
c)
traits.
d)
theories.
25.
Why is the mouse population changing over time?
a)
The light mice can reproduce more successfully than the dark mice
b)
The hawks eat more dark mice than light mice because the dark mice taste better
c)
The hawks eat more light mice than dark mice because they can see the light mice more easily
d)
The hawks eat more dark mice than light mice because they can see the dark mice more easily
26.
What process is being shown in this image?
a)
Variation
b)
Natural Selection
c)
Selective Breeding
d)
Homeostasis
27.

Where do adaptations come from?

a)

The individual organism decides to adapt

b)

Mutations that give an organism an advantage in its environment

c)

Genetic recombination during meiosis

d)

Both mutations and genetic recombination are sources of adaptation

28.

"Organisms that are better adapted to the environment survive to pass traits to their offspring" is the definition of

a)

Natural Selection

b)

Evolution

c)

Selective Breeding

d)

Artificial Selection

29.

Which best describes the role of mutations in natural selection?

a)

Mutations help an organism to better survive in their environment

b)

An organism may acquire a helpful mutation by interacting with the environment

c)

A mutation may result in a beneficial trait that makes an organism more likely to survive and reproduce

d)

Organisms with certain traits are more likely to win competitions for mutations

30.

All rabbits of the same species living in a particular area would be an example of a(n)

a)

population

b)

species

c)

community

d)

ecosystem

31.

The more genetic variation a population has,

the more likely it is for some individuals to

a)

evolve

b)

migrate

c)

survive

d)

mutate

32.

Mutations are important because they bring about

a)

death of the organism in which they develop

b)

genetic variation needed for a population to evolve

c)

benefits for the individual, not for the population

d)

changes in genotype, but not phenotype

33.
Why do frogs and other organism reproduce so many eggs or offspring?
a)
so that their babies can have friends to play with
b)
the more offspring the more likely the offspring will survive
c)
the more offspring the less likely offspring will survive 
d)
the more offspring the less competition
34.
Which organisms are most likely to survive?
a)
the best adapted
b)
the fastest
c)
the strongest
d)
the most domesticated (tamed)
35.
Do organisms "decide" to evolve and change?
a)
Yes, they know they need to change to survive 
b)
No, they change because of natural selection
36.
The long and sharp beak of a woodpecker is an example of:
a)
Natural Selection
b)
Selective Breeding
37.
Domesticated dogs are an example of:
a)
Natural Selection
b)
Selective Breeding
38.

Why is competition important for natural selection?

a)

It shows which variations are more successful, allowing the organisms with those variations to survive.

b)

It causes organisms, regardless of which traits they have, to die out, reducing the population size.

c)

It causes organisms to get stronger due to having to outcompete other species.

d)

Competition is not important for natural selection.

39.

A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:

a)

the green population to increase and the yellow to decrease

b)

both populations should stay the same

c)

both populations will increase

d)

the green population to decrease and the yellow to increaseThis is a wrong answer

40.

What word describes a trait that helps an organism survive in its environment?

a)

natural selection

b)

mutation

c)

camouflage

d)

adaptation

41.
Dogs such as Chihuahuas are examples of....
a)
Artificial Selection 
b)
Natural Selection 
c)
Mutations 
42.

Natural Selection is driven by a change in the environment and survival of the

a)

Earth

b)

Fastest

c)

Fittest

d)

Biggest

43.

Why are advantageous traits more likely to be passed onto offspring?

a)

Because they are more likely to survive and reproduce.

b)

Because they come from dominant alleles.

c)

Because they come from recessive alleles.

d)

Because the organism knew it needed that trait, survives, and passes it on.

44.

Mutations are a change in what?

a)

DNA

b)

tRNA

c)

protein

d)

rRNA

45.
Why is the mouse population changing over time?
a)
The light mice can reproduce more successfully than the dark mice
b)
The hawks eat more dark mice than light mice because the dark mice taste better
c)
The hawks eat more light mice than dark mice because they can see the light mice more easily
d)
The hawks eat more dark mice than light mice because they can see the dark mice more easily
46.
What process is being shown in this image?
a)
Variation
b)
Natural Selection
c)
Selective Breeding
d)
Homeostasis
47.

Where do adaptations come from?

a)

The individual organism decides to adapt

b)

Mutations that give an organism an advantage in its environment

c)

Genetic recombination during meiosis

d)

Both mutations and genetic recombination are sources of adaptation

48.

"Organisms that are better adapted to the environment survive to pass traits to their offspring" is the definition of

a)

Natural Selection

b)

Evolution

c)

Selective Breeding

d)

Artificial Selection

49.

According to natural selection, light colored tree trunks would favor

a)

light colored moths

b)

dark colored moths

c)

red colored moths

d)

red and light colored moths

50.

Speciation can occur as a result of geographic isolation because _________.

a)

members of a species can no longer find mates

b)

populations that live in different environments may be exposed to different selection pressures

c)

exchange of genes during recombination

d)

movement of genes within a population because of interbreeding

51.

_______________ occurs when a population declines to a very small number then goes back up but results in a permanent loss of genetic diversity in the population (example: the Cheetah population)

a)

coevolution

b)

bottleneck

c)

archaeopteryz

d)

mutation

52.
What does the picture represent?
a)
Founder Effect
b)
Mutations
c)
Bottleneck effect
d)
Gene Flow
53.
What does the image represent?
a)
Founder effect
b)
Bottleneck effect
c)
Natural Selection
d)
Mutations
54.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
55.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
56.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
57.
What are the organisms that break down dead stuff?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Organisms
58.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
59.

Click on the image to make it larger-- Choose all that apply: The hawk gets energy from...

a)

mouse

b)

rabbit

c)

wildflowers

d)

snake

60.

Click on the image to make it larger-- Choose the living things that are producers...

a)

wildflowers

b)

rabbit

c)

snake

d)

grass

61.

Click on the imgae to make it larger-- Choose the herbivores in the food web....

a)

hawk

b)

mouse

c)

rabbit

d)

snake

62.

A ____________________ shows how energy is passed from one living thing to another...

a)

ecosystem

b)

food chain

c)

habitat

63.

A cow eats grass found in its habitat. A cow is a

a)

producer

b)

consumer

c)

herbivore

64.

Bears eat berries and salmon. Bears are ...

a)

producers

b)

carnivores

c)

omnivores

65.

Why might an organism have more than one arrow coming from them in a food web?

a)

More than one organism may eat them.

b)

They may eat more than one other organism.

c)

This organism gets its energy from multiple sources.

66.
What is missing from this food chain?
Grass > Grasshopper > Bird > Snake
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
67.

Plants are called _____________ as they make their own food.

a)

consumers

b)

producers

c)

decomposers

d)

conductors

68.

Plants obtain light from the sun to make food during _______________.

a)

respiration

b)

pollination

c)

reproduction

d)

photosynthesis

69.

Consumers that feed on plants are also known as ____________.

a)

herbs

b)

herbivores

c)

spores

d)

reservoirs

70.

Consumers that eat other animals are also known as ________________.

a)

carnivores

b)

carnivals

c)

producers

d)

decomposers

71.

Animals that eat both plants and animals are known as ______________

a)

greedy

b)

herbivores

c)

carnivores

d)

omnivores

72.
What's the role of consumers in a food chain?
a)
Use sunlight to make food 
b)
Eat other species and keep them from overpopulating
c)
Break down dead stuff
d)
Add nutrients to the soil
73.
Which food chain is in the correct order?
a)
cat, grass, bird, snail
b)
bird, snail, grass, cat
c)
grass, snail, bird, cat
d)
grass, cat, bird, snail
74.
Molds, bacteria, and worms are ________.
a)
decomposers
b)
producers
c)
consumers
d)
food chains
75.
Humans are considered...
a)
consumers
b)
decomposers
c)
producers
76.

In the food web shown, who is the secondary consumer?

a)

grass

b)

mouse

c)

rabbit

d)

fox

77.

What does a primary consumer eat?

a)

tertiary consumers

b)

secondary consumers

c)

producers

d)

decomposers

78.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a ecosystem.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
79.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

80.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

81.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
82.

If the carrying capacity of a predator decreases, what will happen to the carrying capacity of the prey?

a)

Will Increase

b)

Will Decrease

c)

Will stay the same

83.

The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

a)

It will decrease.

b)

It will increase.

c)

It will remain the same.

84.

In the graph to the right, what is the population of deer at the carrying capacity of the environment?

a)

3

b)

7

c)

70

d)

40

85.

When a population grows past the ecosystem's carrying capacity, what happens to the population?

a)

It continues to grow higher and higher.

b)

The population starts to die off and returns to the carrying capacity.

c)

The population will go extinct due to lack of resources.

86.

The picture to the right represents a sunny, dry desert.

Which factor most likely limits the desert’s carrying

capacity for plant life?

a)

the number of animals that eat plants

b)

the amount of sunlight

c)

the availability of space to grow

d)

the availability of water

87.

A population of salamanders that live in a river require clear, fresh water to survive. New housing developments have caused tons of sediment to muddy the river. Which

of these most likely will happen to the salamander population?

a)

The salamanders go live on land.

b)

The salamanders will move across land to another river.

c)

The salamanders will quickly adapt to living in the muddy water.

d)

The salamanders will decrease in number because of the water quality.

88.

Primary or secondary ecological succession?

a)
b)
89.

Primary or secondary ecological succession?

a)
b)
90.

Primary or secondary ecological succession?

a)
b)
91.

Pioneer species are the first

a)

trees to grow in an area that has been disturbed

b)

trees that replace the original trees after a forest fire

c)

organisms to live in previously uninhabited areas

d)

organisms to live in a forest canopy

92.

A sequence of biotic changes that regenerate or create an ecological community is known as

a)

migration

b)

factors

c)

succession

d)

erosion

93.
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
94.
A change that a living thing goes through so it fits in better with its environment
a)
Adaptation
b)
Drought
c)
Range of tolerance
d)
Chlorophyll
95.

Natural disturbances, such as fires or hurricanes, can result in

a)

A.parasitism.

b)

B.competition.

c)

C.commensalism.

d)

D.succession.

96.

How is primary succession different from secondary succession?

a)

Primary succession starts with soil.

b)

Secondary succession start with bare rock.

c)

Primary succession starts with bare rock, with lichens and moss.

d)

Fire is an example of primary succession.

97.

What does this represent?

a)

Biotic

b)

Abiotic

c)

Organism

d)

d

98.

What does this represent?

a)

Adaptation

b)

species

c)

niche

d)

d

99.

What does this represent?

a)

climate

b)

Biotic

c)

competition

d)

d

100.

What does this represent?

a)

mutualism

b)

population

c)

boundary

d)

d

101.

What does this represent?

a)

carrying capacity

b)

limiting factor

c)

resource

d)

D

102.

What does this represent?

a)

parasitism

b)

interdependent species

c)

Climate

103.

What does this represent?

a)

organism

b)

Commensalism

c)

species

d)

D

104.

What does this represent?

a)

abiotic

b)

community (communities)

c)

niche

d)

D

105.

What does this represent?

a)

predation

b)

mutualism

c)

competition

d)

D

106.

What does this represent?

a)

Keystone Species

b)

organism

c)

adaptation

d)

D

107.

What does this represent?

a)

commensalism

b)

biotic

c)

interdependent relationship

d)

D

108.

What does this represent?

a)

limiting factor

b)

boundary

c)

resource

109.

What does this represent?

a)

Mutualism

b)

commensalism

c)

communuty

d)

D

110.

What does this represent?

a)

organism

b)

niche

c)

biotic

d)

D

111.

What does this represent?

a)

keystone species

b)

predation

c)

organism

d)

D

112.

What does this represent?

a)

parasitism

b)

commensalism

c)

interdependent relationship

d)

D

113.

What does this represent?

a)

organism

b)

population

c)

species

d)

D

114.

What does this represent?

a)

mutualism

b)

competition

c)

predation

d)

D

115.

What does this represent?

a)

abiotic

b)

resource

c)

adaptation

d)

D

116.

What does this represent?

a)

biotic

b)

organism

c)

species

d)

D

117.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

118.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

119.

If the carrying capacity of a predator decreases, what will happen to the carrying capacity of the prey?

a)

Will Increase

b)

Will Decrease

c)

Will stay the same

120.
The largest number of individuals that an area can support is called its _______.
a)
limiting factor
b)
abiotic factor
c)
resource availability
d)
carrying capacity
121.

The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

a)

It will decrease.

b)

It will increase.

c)

It will remain the same.

122.

A scientist was studying a population of fish in a pond over a period of 10 years. He observed that

the population increased each year for 3 years, and then remained nearly constant for the rest of

the study. The best explanation for this observation is that the population had

a)

stopped reproducing

b)

reached carrying capacity

c)

mutated into a different species

d)

run out of food and all died

123.

What are factors that affect carrying capacity?

a)

Biotic only

b)

Biotic and abiotic

c)

Depends on the ecosystem

d)

Abiotic only

124.

What happens if a population grows past its carrying capacity?

a)

The population keeps growing

b)

The population starts to die off

c)

The entire species will go extinct

d)

The carrying capacity just increases

125.

What type of growth is demonstrated in the graph?

a)

Exponential

b)

Carrying capacity

c)

Linear

d)

Negative

126.

Logistic population growth can be described as

a)

growth when resources are limited

b)

a s-shaped curve

c)

reaching carrying capacity

d)

all of the above

127.

Exponential Growth occurs when-

a)

populations have plenty of food/space

b)

home to keystone species

c)

have few evasive species in a habitat

d)

have little to no competition or predators

128.

What point on the graph represents the carrying capacity?

a)

A

b)

B

c)

C

d)

D

129.

Logistic growth displays a ____-shaped curve which indicates a population size capped at carrying capacity.

a)

J

b)

S

c)

C

d)

V

130.
What is the carrying capacity of this population?
a)
100
b)
200
c)
300
d)
400
131.
What is the approximate carrying capacity of Paramecium aurelia cultured alone?
a)
150
b)
400
c)
450
d)
500
132.
Lice feed off the blood of mammals. This is an example of:
a)
Paratism
b)
Mutualism
c)
Commensalism
d)
Friendship
133.
When a nontoxic viceroy butterfly has come to resemble the distasteful monarch butterfly, the relationship can best be called____________
a)
Copy cat
b)
Self-mimicry
c)
Mullerian Mimicry
d)
Batesian Mimicry
134.
Succession that occurs on abandoned agricultural fields is best described as
a)
Tertiary
b)
Primary
c)
Secondary
d)
Last
135.
A snake that has evolved to look similar to a branch will probably be able to avoid
a)
Predation
b)
Mating
c)
Feeding
d)
Hiding
136.
When lichens begin to grow on a lava flow this is
a)
Primary
b)
Secondary
c)
Tertiary 
d)
Quaternary
137.
Which of the following tends to happen as a population approaches its carrying capacity?
a)
Resources become scarce
b)
population growth
c)
livingspace opens up
d)
more food is available
138.
When an ant colony defends an acacia tree because that is its habitat, the relationship between the two is called__
a)
Mutualism
b)
Paratism
c)
Commensalism
d)
Mimicry
139.
All of these are  characteristic of an r-selected population EXCEPT:
a)
Short life span
b)
No parental care
c)
Early age of reproduction
d)
Late age of reproduction
140.
Ecology is
a)
The study of the interactions of organisms with each other and their habitat
b)
The study of life
c)
The study of taxonomy
d)
The study of population growth
141.
Ecology is
a)
The study of the interactions of organisms with each other and their habitat
b)
The study of life
c)
The study of taxonomy
d)
The study of population growth
142.
All of the different kinds of interacting organisms living within a certain area make up a(n) __
a)
Community
b)
Ecosystem
c)
Species
d)
Population
143.
Which of the following is not a type of symbiosis?
a)
aposematic coloring
b)
mutualism
c)
commensalism
d)
paratism
144.
When the growth rate of a population tapers off at a certain point and remains at the same point indefinitely, the population is said to have reached the____
a)
Carrying Capacity
b)
Balance
c)
Threshold
d)
Carrying Threshold
145.
The type of growth that a population may show when food and habitat are limitless is called
a)
Exponential Growth 
b)
Balance Growth
c)
Threshold Growth
d)
Carrying Growth
146.
A lion and a zebra both drinking from the same watering hole is an example of:
a)
interspecific competition
b)
specific competition
c)
first competition 
d)
secondary competition
147.
Camouflage that keeps the animal hidden from predators 
a)
aposematic coloring
b)
blending
c)
Batesian Mimicry
d)
Mullerian Mimicry
148.
Coloring that warns other animals to keep away.
a)
aposematic coloring
b)
blending
c)
Batesian Mimicry
d)
Mullerian Mimicry
149.
Ramoras hang around sharks and eat the scraps they leave behind after a meal. This is a type of ___
a)
Commensalism
b)
Paratism
c)
Mutualism
d)
Dictatorship
150.
___________helps species avoid competition by dividing the resources and creating different niches
a)
resource partitioning 
b)
spreading out
c)
balance
d)
balance partitioning 
151.
Late age of first reproduction. Is this r-selected adaptation or k-selected adaptation?
a)
 r-selected
b)
k-selected 
152.
Parasitism is a form of symbiosis.
a)
True
b)
False
153.
In true commensalism, both partners benefit.
a)
False
b)
True
154.
A camouflaged animal uses aposematic coloring to hide from predators
a)
False
b)
True
155.
When the eyespot on a butterfly's wings startles a predator and the prey gets away, this is probably ___.
a)
Self-mimicry
b)
Batesian Mimicry
c)
Mullerian Mimicry
d)
r-selected adaptation
156.

A community is composed of

a)

living organisms and their nonliving environment.

b)

one species of organism living in a specific environment on Earth.

c)

the factors that constitute an organism's niche.

d)

potentially interacting populations of different kinds of organisms.

157.

An owl and a hawk both eat mice. Which of these describes the relationship between a hawk and an owl?

a)

parasitism

b)

competition

c)

predation

d)

mutualism

158.

The sum total of a population's use of the biotic and abiotic resources of its habitat constitutes its

a)

evolution.

b)

range.

c)

niche.

d)

environment.

159.

In an ecosystem, you would expect to find interspecific competition between

a)

males and females of a species in which both sexes occupy the same niche.

b)

two wasp species that mimic each other's appearance.

c)

populations of two species that occupy the same niche.

d)

a prey species and its predator.

160.

Camouflage typically evolves as a result of

a)

mutualism.

b)

herbivory.

c)

predation.

d)

interspecific competition.

161.

Some herbivore-plant interactions evolved through a series of reciprocal evolutionary adaptations in both species. The process is called

a)

coevolution.

b)

herbivory.

c)

selection.

d)

trophism.

162.

In a hypothetical food chain consisting of grass, grasshoppers, sparrows, and hawks, the grasshoppers are

a)

primary producers.

b)

secondary producers.

c)

primary consumers.

d)

secondary consumers.

163.

Organisms that digest molecules in organic material and convert them into inorganic forms are

a)

detritivores.

b)

primary producers.

c)

decomposers.

d)

primary consumers.

164.

Which of the following statements regarding food webs is true?

a)

Several species of primary consumers may feed on the same species of producer.

b)

A consumer eats only one type of producer.

c)

Detritivores consume dead organic matter from a specific trophic level.

d)

Nutrient transfer moves from producer to consumer and back.

165.

The number of species in a community is called the

a)

species population.

b)

species index.

c)

species diversity.

d)

species richness.

166.

We expect that a keystone species that is a predator will

a)

reduce the diversity of the community.

b)

harvest prey species down to extinction.

c)

help many of its prey reproduce.

d)

maintain the species diversity in a community.

167.

During ecological succession, the species composition of a plant community generally

a)

remains stable as long as major environmental factors (climate, human interference) remain constant.

b)

changes gradually because each species responds differently to the changing environment.

c)

changes from a diverse community in which many plants are common to one in which a few species are numerically dominant.

d)

changes until forest is established and a single species remains.

168.

When a New England farm is abandoned, its formerly plowed fields first become weedy meadows, then shrubby areas, and finally forest. This sequence of plant communities is an example of

a)

secondary succession.

b)

evolution.

c)

primary succession

d)

a trophic chain.

169.

For a given area and time period, the amount of solar energy converted to chemical energy in organic compounds is called

a)

secondary succession.

b)

secondary production.

c)

primary production.

d)

primary succession.

170.

Bu sizinle yaptığım son ders... Eğer isterseniz bundan sonra dışarıda Evren ablanız olarak hayatınızda olmaya devam edeceğim :) Çok kalp

4 lines
171.
Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
172.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
173.
What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
174.
What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
175.
Which symbols best describe parasitism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
176.
Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.
a)
commensalism
b)
mutualism
c)
neutralism
d)
competition
177.
A relationship between two organisms in which both organisms benefit. 
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
178.
When a mosquito bites you, you are the __________ and the mosquito is the  ____________.
a)
host, hostess
b)
parasite, host
c)
host, parasite
d)
prey, predator
179.

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

a)

Predation

b)

Parasitism

c)

Commensalism

d)

Mutualism

180.
What type of symbiosis is this?
*Hermit crabs find shells left by snails that have died and move in.
*  Snails die and leave behind their shells.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
181.
Which symbols best describe mutualism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
182.
Silverfish live and hunt with army ants. They share the prey.  They neither help nor harm the ants. 
a)
Mutualism 
b)
Parasitism 
c)
Commensalism 
183.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
184.
Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 
a)
parasitism
b)
commensalism
c)
mutualism
185.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 
a)
parasitism
b)
commensalism
c)
mutualism
186.
Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Because their visual abilities are different, they can identify threats that the other animal would not see as readily. 
a)
parasitism
b)
commensalism
c)
mutualism
187.
Honey guide birds alert and direct badgers to bee hives. The badgers then expose the hives and feed on the honey first. Next the honey guide birds eat. Both species benefit. 
a)
parasitism
b)
commensalism
c)
mutualism
188.
A cuckoo may lay its eggs in a warbler’s nest. The cuckoo’s young will knock the warbler’s eggs out of a nest and the warbler will raise the cuckoo’s young.
a)
parasitism
b)
commensalism
c)
mutualism
189.
Oxpeckers feed on the ticks found on a rhinoceros. The oxpeckers get a meal and the rhinoceros is helped by the removal of the ticks.
a)
parasitism
b)
commensalism
c)
mutualism
190.
As bison walk through grass, insects become active and are seen and eaten by cowbirds. The relationship neither harms nor benefits the bison.
a)
parasitism
b)
commensalism
c)
mutualism
191.

Two arctic fox are fighting with a polar bear for a sea lion carcass. One fox distracts the bear while the other eats. What type of limiting factor is the polar bear?

a)

Predator-Prey Relationships

b)

Competition

c)

Herbivory Effect

d)

Weather

192.

A group of elephants gets stuck in mud at the edge of the river from a recent mud slide. A lion waits for an elephant to get tired before it attacks. What is the limiting factor to the elephant population?

a)

Predator-Prey Relationships

b)

Natural Disaster

c)

Herbivory Effect

d)

Competition

193.

A duck population is breeding at exponential rates. The snakes that hunted them have been collected by fur collectors. They make boots from python snake skin. What is the limiting factor to the snakes?

a)

Ducks

b)

Predator-Prey

c)

Exponential Growth

d)

Humans

194.

A duck population normally begin migrating south right after the last rain of the late summer season. Suddenly, they’re migrating much earlier. The climate has been changing far too often which is altering the effects of their magnetite.

a)

Predator-Prey Relationships

b)

Weather

c)

Herbivory Effect

d)

Competition

195.

One of the wolf populations leaves the forest. Over time, bushes, trees and moisture begin to leave as well. There is an effect on the producer populations because the herbivores are overgrazing the land. What is the limiting factor to the producer?

a)

Competition

b)

The wolf

c)

Herbivory Effect

d)

Mutualism

196.

One of the wolf populations begins to compete with a new bear population for the same herbivores. Over time, bushes, trees and rivers improve in numbers. There is an effect on the producer populations. What is the limiting factor to the herbivore?

a)

Predator-Prey Relationships

b)

Herbivory Effect

c)

Competition

d)

Wolves and Bears

197.

Small krill sweep the river bottom rocks for debris and muck. Next, the krill is suddenly swooped up by a small fish. The small fish then gets eaten by a salmon. A week after the bear eats the salmon, it begins to have symptoms. Over time the bear weakens from a botfly infection. What is the limiting factor to all the consumers?

a)

Predator-Prey Relationships

b)

Parasites

c)

Disease

d)

Competition

198.

A honey-badger digs the ground tunnels in search for snakes. In one occasion, the badger finds a snake and competes with it. The badger leaves scratches and bite marks on the snake before it escapes. After twenty-four hours the snake dies. What is the limiting factor to the snake?

a)

Predator-Prey Relationships

b)

Competition

c)

Disease

d)

Predation

199.

The wolf population gets reintroduced to the ecosystem. There is enough deer to go around, so they eat comfortably. The wolf population begins to grow out of control with so much food. The different wolf families then begin to compete for the few caves that exist. Not everyone has good shelter so some have to sleep in the forest floors. What is the limiting factor to the wolves?

a)

Overcrowding

b)

Competition

c)

Weather

d)

Shelter

200.

The wolf goes extinct, and the deer population has no predator to worry about. They graze the land. Because there is no more food. Some of the deer begin to bite at each other, while others die of starvation. What is the limiting factor to the deep population?

a)

Competition

b)

Overcrowding

c)

Predator-Prey Relationships

d)

Herbivory Effect

201.

A landslide covers the river’s path. Further downstream, water depletes and fish populations start to go down. In this case the landslide was a limiting factor.

a)

Weather

b)

Natural Disaster

c)

Climate Change

d)

Global Warming

202.

A random cloud forms and fills the rivers with excess water. In one lake biome, the excess rain pulls trees into rivers destroying bird shelters. What is the limiting factor to the biome?

a)

density-dependent limiting factor

b)

Weather

c)

Climate

d)

Natural Disaster

203.

Which of these factors do not respond to the density of a population in an ecosystem?

a)

Density Dependent Limiting Factors

b)

Density Independent Limiting Factors

c)

Herbivory Effect

d)

Competition

204.

Which of these limiting factors has an influence on the growth of a population based on its density?

a)

Natural Disasters

b)

Seasonal Changes

c)

Weather

d)

Overcrowding

205.

A student brings home a bull toad from the Amazon in Brazil. It gets fat and ugly so he tosses it in the river. This toad starts competing with local toads for their food, shelter, and space. What kind of limiting factor best represents what happened to the local toads?

a)

Competition

b)

Overcrowding

c)

Natural Disaster

d)

Human Impact

206.

Which of these has the greatest effect on the population of moose?

a)

Population of Grass

b)

Population of Ticks

c)

Population of Humans

d)

Population of Wolves

Similar Resources on Wayground

Bacel quiz

207 questions

Bacel quiz

quiz

Worksheet

•

12th Grade

AP Chemistry - THOU SHALT NOT FORGET

210 questions

AP Chemistry - THOU SHALT NOT FORGET

quiz

Worksheet

•

11th - 12th Grade

GMO Winter Final

210 questions

GMO Winter Final

quiz

Worksheet

•

11th - 12th Grade

B4 ONLY - RNA and Protein Synthesis Activity

209 questions

B4 ONLY - RNA and Protein Synthesis Activity

quiz

Worksheet

•

9th Grade

fisiologia2

207 questions

fisiologia2

quiz

Worksheet

•

5th - 12th Grade

4.4 DNA Review 1 2023

209 questions

4.4 DNA Review 1 2023

quiz

Worksheet

•

9th Grade

Sem.1 Review

207 questions

Sem.1 Review

quiz

Worksheet

•

12th Grade - University

Taxonomy and Classification (and evolution)

205 questions

Taxonomy and Classification (and evolution)

quiz

Worksheet

•

12th Grade