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Ecosystems & Food Chains

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the producer in the picture above?

a)

grasshopper

b)

snake

c)

grass

d)

Sun

2.

What is the decomposer in the picture above?

a)

grass

b)

fungus/mushrooms

c)

hawk

d)

frog

3.

The model above is an example of a ...

a)

food chain

b)

food web

c)

habitat

d)

ecosystem

4.

A model that shows one direct flow of energy from the Sun to decomposers in an ecosystem is called a

a)

food web

b)

food chain

c)

population

d)

community

5.

A model that shows how all of the food chains in an ecosystem overlap and connect is called a

a)

community

b)

habitat

c)

food chain

d)

food web

6.

What would harm this food web the most?

a)

the animals roaming about in this ecosystem

b)

rain

c)

pesticides being sprayed

7.

Which organism provides the energy for the producers in this model?

a)

frogs

b)

corn

c)

none of them, the energy comes from the Sun

d)

Eagle

8.

What do decomposers do in a food chain?

a)

they are the first part of a food chain that feeds all of the other organisms

b)

they break down all other organisms to provide nutrients for the soil to help the producers

c)

they serve as food for the consumers

9.

When you compare the deer to the wolf, the deer would be the

a)

decompser

b)

predator

c)

prey

d)

producer

10.

Choose the living things in the food web that are consumers --click on the image to make it larger

a)

wildflowers

b)

hawk

c)

rabbit

d)

snake

e)

mouse

11.

Click on the image to make it larger-- Choose the living things that are producers...

a)

wildflowers

b)

rabbit

c)

snake

d)

grass

12.

Click on the image to make it larger--The rabbit gets energy from the ....

a)

hawk

b)

mouse

c)

wildflowers

d)

grass

13.

Click on the imgae to make it larger-- Choose the herbivores in the food web....

a)

hawk

b)

mouse

c)

rabbit

d)

snake

14.

A cow eats grass found in its habitat. A cow is a

a)

producer

b)

consumer

c)

herbivore

15.

A shark eats mostly fish and smaller ocean animals. A shark is a ...

a)

herbivore

b)

carnviore

c)

decomposer

16.

Bears eat berries and salmon. Bears are ...

a)

producers

b)

carnivores

c)

omnivores

17.
Invasive species grow quickly due to the lack of predators, this leads to a decline or extinction of the native population. True or false? 
a)
false
b)
true
18.
A species that is not native to an area is called: 
a)
Native Species
b)
Natural Species
c)
Invasive Species
d)
Symbiotic Species
19.
This invasive species came over in boats from Europe in the 1980's.  They harm native fish, clog pipes and ruin beaches.  
a)
Sea Lamprey
b)
Zebra Mussel
c)
Asian Carp
d)
Feral Swine
20.
Why do the populations of invasive species grow so quickly? 
a)
Invasive Species are native to an area. 
b)
Invasive species are prey to many animals.
c)
Invasive species have no predators.
d)
Invasive species keep the ecosystems in equilibrium.