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Ecosystems Review

Total questions: 11

Worksheet time: 10mins

Name
Class
Date
1.

Match the following

a)

herbivore

1.

a consumer that feeds on plants only

b)

carnivore

2.

a consumer that feeds on animals only

c)

omnivore

3.

a consumer that feeds on plants and animals

d)

producer

4.

an organism that can make its own food through photosynthesis

e)

consumer

5.

an organism that gains energy by feeding on other organisms

2.

Which trophic level contains the most energy in the pyramid?

3.

Which level in the energy pyramid below would represent a third level consumer?

4.

describes the nonliving things in an ecosystem

a)

Biotic

b)

Abiotic

c)

Predator

d)

Prey

5.

describes the living things in an ecosystem

a)

Biodiversity

b)

Ecosystems

c)

Abiotic

d)

Biotic

6.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
7.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
8.

What is a keystone species?

a)

A species that is most abundant in an ecosystem.

b)

A species that plays a critical role in maintaining the structure of an ecological community.

c)

A species that has no predators in its ecosystem.

d)

A species that can live in a variety of ecosystems.

9.

What is mutualism?

a)

Both species benefit

b)

Neither species benefits

c)

One species benefits, one is harmed

d)

One species benefits, one is unaffected

10.

Which of the following is not an example of symbiosis

a)

Mutualism

b)

Competition

c)

Commensalism

d)

Parasitism

11.

What type of relationship is this: a crocodile's teeth are cleaned by the bird, crocodile gets clean teeth, bird gets a free meal

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Predation