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Food Web, Food Chain, and Energy Pyramids

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

What are animals called in a food chain?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Plants

2.

What kind of living thing can make its own food?

a)

producer

b)

consumer

c)

predator

d)

herbivore

3.

What is the role of a producer?

a)

Use sunlight to make food

b)

Gain energy from eating other organisms

c)

Keep other species from overpopulating

d)

Breaking down dead stuff 

4.

This diagram shows how energy flows through an eco-system. What is the first source of energy in this pyramid (aka producers)?

a)

sharks and large birds

b)

algae, plankton and seagrass

c)

herbivorous fish, crustaceans and sea urchins

d)

seals and carnivorous fish

5.

What is this called?

a)

Food Web

b)

Food Chain

c)

Abiotic Factors

6.

What is this called?

a)

Food Web

b)

Food Chain

c)

Abiotic Factors

7.

In the energy pyramid here, which organisms have the most energy available?

a)

Producers

b)

Carnivores

c)

Herbivores

d)

Top Predator

8.

In the food web shown, the snail would be considered...

a)

primary consumer

b)

secondary consumer

c)

tertiary consumer

d)

producer

9.

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

a)

10 Kcal

b)

1 Kcal

c)

100 Kcal

d)

1000 Kcal

10.

The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain members of the plant kingdom?

a)

A

b)

B

c)

C

d)

D

11.

Which of these is a producer?

a)

Insects

b)

Grass

c)

Bacteria

d)

Eagle

12.

Where do producers get most of the energy they need to make their own food?

a)

carbon dioxide

b)

oxygen

c)

sunlight

d)

water

13.

Which of the following best describes a food web?

a)

A network of interconnected food chains

b)

A linear sequence of organisms each feeding on the next

c)

A pyramid showing energy flow

d)

A diagram showing the water cycle

14.

In an energy pyramid, which level contains the most energy?

a)

Producers

b)

Primary consumers

c)

Secondary consumers

d)

Tertiary consumers

15.

What role do decomposers play in a food chain?

a)

They produce energy from sunlight

b)

They break down dead organisms and recycle nutrients

c)

They are the top predators

d)

They compete with primary consumers for food