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Food Webs and Energy Pyramids

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Which of the following vocabulary words can be used to describe the grass in this food chain?

a)

heterotroph, primary consumer

b)

autotroph, producer

c)

decomposer, secondary consumer

d)

primary consumer, autotroph

2.

Which of the following vocabulary words can be used to describe the frog in this food chain?

a)

secondary consumer, heterotroph

b)

heterotroph, tertiary consumer

c)

autotroph, secondary consumer

d)

decomposer, heterotroph

3.

Fungi and bacteria would play which of these roles in a food web?

a)

producer

b)

heterotroph

c)

autotroph

d)

decomposer

4.

How much energy is passed on to the next trophic level in an energy pyramid?

a)

5%

b)

1%

c)

100%

d)

10%

5.

If the grass in this example had 10,000 Kcal of energy, about how much of that energy would be stored in trophic level 3?

a)

100 Kcal

b)

100,000 Kcal

c)

10 Kcal

d)

1,000 Kcal

6.

What does the arrow actually represent in a food web or food chain?

a)

Who is being eaten

b)

Who is eating

c)

The flow of energy

d)

the direction of food

7.

What is another name for a producer?

a)

consumer

b)

decomposer

c)

heterotroph

d)

autotroph

8.

What is another name for a heterotroph?

a)

decomposer

b)

consumer

c)

autotroph

d)

producer

9.

Organisms in trophic level 2 are also called...

a)

secondary consumers

b)

tertiary consumers

c)

primary consumers

d)

producers

10.

Why is it better to have more biodiversity in an ecosystem?

a)

because biodiversity can help make ecosystems more sustainable

b)

because biodiversity provides more energy

c)

because biodiversity provides less energy

d)

because it gives us more animals for the zoo