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Interactions in Ecosystems Test (SOL 3.5)

Total questions: 25

Worksheet time: 39mins

Name
Class
Date
1.

What are ecosystems?

a)

A community of living things and nonliving things that share a common environment.

b)

Living things including plants and animals.

2.

What are producers?

a)

Plants that make their own food, using sunlight, air, water, and nutrients in the soil.

b)

An animal that eats living things.

c)

An organism that breaks down dead plants and animals into smaller pieces to be used again by producers.

3.

What are consumers?

a)

Plants that make their own food, using sunlight, air, water, and nutrients in the soil.

b)

An animal that eats living things.

c)

An organism that breaks down dead plants and animals into smaller pieces to be used again by producers.

4.

What are the three types of consumers?

a)

Herbivores

b)

Omnivores

c)

Insectivores

d)

Carnivores

5.

Match the following vocabulary words to its definition.

a)

A consumer that eats only plants.

1.

Herbivores

b)

A consumer that eats both plants and animals.

2.

Omnivores

c)

A consumer that eats only other animals.

3.

Carnivores

d)

An animal that hunts other animals to get its food.

4.

Predator

e)

An animal that is hunted by other animals for food.

5.

Prey

6.

What are decomposers?

a)

Plants that make their own food, using sunlight, air, water, and nutrients in the soil.

b)

An animal that eats living things.

c)

An organism that breaks down dead plants and animals into smaller pieces to be used again by producers.

7.

Which is a decomposer?

a)

Fly

b)

Squirrel

c)

Flower

d)

Bird

8.

All the fish in a pond died. What will most likely happen to this ecosystem?

a)

The fish-eating animals will move to another pond.

b)

Flooding will cause the pond to increase in size.

c)

The animals in the ecosystem will all become herbivores.

d)

The pond will dry out to form a desert environment.

9.

Most food chains begin with a –

a)

predator

b)

large animal

c)

carnivore

d)

green plant

10.

What makes its own food using the sunlight, air, and water?

a)

Predators

b)

People

c)

Producers

d)

Populations

11.

The ecosystem shown in the picture is the home to what type of animals?

a)

River animals

b)

Desert animals

c)

Grassland animals

d)

Forest animals

12.

Eastern cottontail rabbits are commonly found in forest communities eating grass, leafy greens, and shrubs. These rabbits can best be described as –

a)

carnivores living in an aquatic ecosystem

b)

producers living in a water-related ecosystem

c)

omnivores in a food chain

d)

herbivores in a terrestrial ecosystem

13.

Arrows in a food chain, always point to the organism –

a)

doing the eating

b)

on top of the food chain

c)

being eaten

d)

known as the producer

14.

Which are fresh-water ecosystems? (Select all)

a)

Swamp

b)

Ocean

c)

Pond

d)

River

15.

An animal that hunts other animals is called a –

a)

producer

b)

decomposer

c)

predator

d)

prey

16.

What would most likely explain why a black bear population would move away from a forest?

a)

The thick trees became too difficult for the bears to freely roam.

b)

There was so much rain that the bears could not get dry.

c)

All the trees in an area were cut down and used for lumber.

d)

Temperatures in the winter months were colder than usual.

17.

Chipmunks run quickly to hide when a hawk circles in the air. To the hawk, the chipmunk is –

a)

a producer

b)

its prey

c)

a consumer

d)

its ecosystem

18.

What term would best describe this consumer?

a)

Omnivore

b)

Carnivore

c)

Producer

d)

Herbivore

19.

What are the living and nonliving components in the following ecosystem?

TERMS:

sunlight

plankton

soil

air

decomposer

Categorize the following

sunlight

soil

air

plankton

decomposer

Living
Nonliving
20.

What is the main source of energy in this food chain?

a)

Sun

b)

Grass

c)

Zebra

d)

Cheetah

21.

Ecosystems are complex and diverse. They –

a)

have more nonliving components than anything else

b)

protect habitats through conservation

c)

contain both living and nonliving components

d)

measure their success by the number of living creatures

22.

What are examples of aquatic and terrestrial ecosystems?

ECOSYSTEMS:

marsh

swamp

desert

grassland

ocean

forest

river

rainforest

Categorize the following

marsh

swamp

ocean

river

desert

grassland

forest

rainforest

Aquatic Ecosystems
Terrestrial Ecosystems
23.

What three animals are part of a rainforest ecosystem?

a)

Monkey

b)

Toucan

c)

Shark

d)

Deer

e)

Lizard

24.

What terrestrial ecosystem is being described in the cause-and-effect chart?

CAUSE: little to no rain

EFFECT: little to no plant life

a)

Rainforest

b)

Desert

c)

Forest

d)

Marsh

25.

Create a food chain using the animals shown in the picture.