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Ecology Unit Review

Total questions: 17

Worksheet time: 15mins

Name
Class
Date
1.

Sunlight, water, soil, & air are all examples of

a)

Biotic factors

b)

Abiotic factors

2.

Rabbits, fish, trees, grass and a log are all examples of

a)

Biotic factors

b)

Abiotic factors

3.

The deer population in an ecosystem has reached a point where it cannot get any larger because there is not enough food or shelter. The deer population has reached its...

a)

minimum size

b)

biotic maximum

c)

limiting factor

d)

carrying capacity

4.

What is NOT an example of limiting factors?

a)

Predation

b)

Food Source

c)

Space

d)

Migration

5.

If a population of gazelle decrease, the population of cheetahs will...

a)

Decrease

b)

Increase

c)

Stay the same

d)

Cheetahs don't eat gazelle

6.
If the amount of food or resources available increases, the carrying capacity for an animal:
a)
Stays the same
b)
Increases
c)
Decreases
d)
Fluctuates
7.
Limiting factors are sometimes helpful because they can keep the population from getting too large.
a)
True
b)
False
8.
When there is a lack of resources such as food, water, sunlight, shelter, and space this is often called __________.
a)
limiting factors
b)
wet
c)
messy
d)
found in rocks
9.
If the population of a certain predator increases, there is often _______ its prey
a)
a decrease the population of
b)
an increase of the population of 
c)
great news for its prey of
d)
no  impact found on
10.
If there is more food than usual in an ecosystem, then...
a)
Populations will stay the same
b)
Populations will decrease
c)
Populations will increase
11.

What would happen to the bird if the green fish died out?

a)

the bird population would grow

b)

the bird population would die out

c)

the smaller fish will die out

12.
What do the arrows represent in this diagram?
a)
who is being eaten
b)
the flow of energy
c)
the decomposition of organisms
d)
what things can change into
13.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
14.

What would happen if their were no producers?

a)

Every population would grow larger

b)

Everything would die out

c)

The animals would make their own food

15.
Use the diagram 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
16.

The living world is organized in levels. Biotic and abiotic factors also can be arranged into levels of biological organization. Put the words below in order from the least complex to the most complex

a)

Community, Organism, Biome, Population, Biosphere, Ecosystem

b)

Organism, Population, Community, Ecosystem, Biome, Biosphere

c)

Organism, Biome, Population, Community Biosphere, Ecosystem

17.

If the squirrel population increases then animals that are predators of squirrels, such as owls and foxes, will ___________________.

a)

increase

b)

decrease

c)

stay the same

d)

go extinct