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Energy flow of ecosystems

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

Organisms that make their own food

a)

Producer

b)

Consumer

c)

Decomposer

2.

Organisms that obtain energy by feeding on other organisms

a)

Producer

b)

Consumer

c)

Decomposer

3.

Organisms that break down wastes and dead organisms and return the raw materials to the environment

a)

Producer

b)

Consumer

c)

Decomposer

4.

Consumers that eat only plants

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

5.

Consumers that eat only animals

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

6.

Consumers that eat both plants and animals

a)

Omnivores

b)

Carnivores

c)

Herbivores

d)

Scavengers

7.

A food _______ is a series of events in which one organism eats another and obtains energy.

a)

chain

b)

web

c)

pyramid

d)

plate

8.

A food _______ consists of many overlapping food ________.

a)

web, chains

b)

chain, webs

c)

pyramid, webs

d)

web, pyramids

9.

As you work your way up the energy pyramid, what happens to the energy?

a)

It increases

b)

It decreases

c)

It stays the same

d)

Nothing

10.

As you work your way up the energy pyramid, what happens to the energy?

a)

It increases

b)

It decreases

c)

It stays the same

d)

Nothing

11.

In the food web above, what eats the rabbit?

a)

Fox

b)

Hawk

c)

Vole

d)

Grass

12.

In the energy pyramid, what is the bottom level composed of?

a)

Producers

b)

First-Level Consumers

c)

Second-Level Consumers

d)

Third-Level Consumers

13.

In the food web above, what organism is missing from this food chain:

Grass --> Slug --> ________ --> Hawk

a)

Vole

b)

Frog

c)

Insect

d)

Thrush

14.

Relating to water; living in or near water or taking place in water.

a)

Aquatic

b)

Bernie the dolphin

c)

Savannah

d)

Artic

15.

An organism that must consume other organisms for nutrients.

a)

Consumer

b)

Producer

c)

Parasite

d)

Decomposer

16.

Organisms such as bacteria and fungi that break down the remains of dead plants and animals without need for internal digestion

a)

Decomposers

b)

Consumer

c)

Predator

d)

Producer

17.

Overlapping food chains with different pathways for the flow of food energy in an ecosystem

a)

Food Web

b)

Ecosystem

c)

Deciduous Forest

d)

Energy Transfer

18.

Organisms that transform energy from the Sun and use carbon dioxide and water to make food

a)

Producers

b)

Decomposers

c)

Photosynthesis

d)

Consumers

19.

Organism that obtains energy by eating both plants and animals

a)

Omnivore

b)

Andrissa

c)

Carnivore

d)

Herbivore

20.

All energy on Earth comes from

a)

food.

b)

the sun.

c)

chemicals.

d)

non-living things.

21.

An example of a producer is a

a)

fungus.

b)

animal.

c)

plant.

d)

person.