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Organisms in an Ecosystem

Total questions: 20

Worksheet time: 23mins

Name
Class
Date
1.

The zebra and giraffe shown here are eating from the same tree. What is a good way to describe the relationship between the zebra and the giraffe?

a)

One is a predator and the other is a prey

b)

They are competitors for the tree

c)

They are carnivores

d)

One depends on the other

2.

When two or more different organisms have to share food, water, space or shelter it will lead to:

a)

Competition between the organisms

b)

Dependency between the organisms

c)

They will share and get along

d)

They will eat each other

3.

In ecosystems, energy flows from plants to animals to decomposers. Where does the energy in plants come from?

a)

Soil

b)

Water

c)

Air

d)

Sun

4.

An organism that kills and eats another organism is called a:

a)

Prey

b)

Herbivore

c)

Decomposer

d)

Predator

5.

How does this organism get energy in an ecosystem?

a)

It is a herbivore that is consuming the soil

b)

It is a carnivore that feeds on insects in the soil

c)

It is a decomposer that gets energy by digesting dead insects

d)

It is a producer that gets energy from the Sun

6.

Energy from the Sun moves through a food chain as organisms grow and eat other organisms. Which shows the right order of energy moving through a food chain?

a)

Producer, Decomposer, Producer

b)

Decomposer, Herbivore, Consumer

c)

Producer, Herbivore, Carnivore, Decomposer

d)

Producer, Carnivore, Decomposer

7.

What is a omnivore?

a)

An organism that eats only meat

b)

An organism that eats only plants

c)

An organism that eats plants and meat

d)

An organism that breaks down dead plants and animals

8.

How does the Salmon get the energy they need in this food chain?

a)

They are producers that get their energy from the Sun

b)

They are decomposers so they feed on dead organisms

c)

They are consumers that eat the Herring

d)

They don't need to consume anything

9.

Which organism is the producer?

a)

Sun

b)

Fox

c)

Mouse

d)

Grass

10.

What would happen if you removed the caterpillar from this food chain?

a)

The mice would be affected

b)

All the animals will be affected

c)

The plant will be affected

d)

Nothing will happen

11.

Which list includes ALL of the carnivores in this food web?

a)

Snake, hawk, fox, rabbit, coyote

b)

Mouse, deer, rabbit

c)

Snake, fox, coyote

d)

Fox, coyote, hawk, snake

12.

What type of organism is the food web missing?

a)

The decomposer

b)

The consumer

c)

The producer

d)

The carnivore

13.

What is this diagram called?

a)

Energy Pyramid

b)

A picture with lines

c)

Food Chain

d)

Food Web

14.

Where does the energy start in this food web?

a)

Coyote

b)

Insect

c)

Plant

d)

Sun

15.

Identify the producer in this food chain.

a)

Owl

b)

Mouse

c)

Corn Seeds

d)

Snake

16.

How many consumers are there in this food chain?

a)

1

b)

2

c)

3

d)

4

17.

Which of these organisms does the owl consume?

a)

Plant

b)

Rabbit

c)

Cricket

d)

Frog

18.

Where does the frog get its energy from?

a)

Snake

b)

Cricket

c)

Owl

d)

Plant

19.

What is wrong with this food web?

a)

There is no producer

b)

An owl does not eat a mouse

c)

Consumers cannot have more than one kind of food

d)

The arrow from the rabbit to the grass is wrong

20.

Which is an example of interdependence?

a)

A deer eating grass

b)

A bird getting its energy from the bugs bothering a zebra's back

c)

Ms. Akid eating Hot Cheetos

d)

A lion eating a deer