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Food Web and Pyramid

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Based on the model, which consumers would receive the greatest amount of energy captured by the producers in their food chains?

a)

Beluga Whale

b)

Polar Bear and Arctic Hare

c)

Ptarmigan and Arctic Bumblebee

d)

Lichens and Shrubs

2.

Which in the apex predator?

a)

Ptarmigan

b)

Polar Bear

c)

Lichens

d)

Beluga Whale

3.

Which group are the producers?

a)

1 and 2

b)

3 and 4

c)

3

d)

4

4.

Which trophic level is Primary consumer?

a)

1

b)

2

c)

3

d)

4

5.

Level 1 is called the _______________ tropic level.

a)

Primary consumer

b)

Primary producer

c)

Tertiary consumer

d)

Tertiary producer

6.

Which trophic level has the greatest amount of energy to use?

a)

Producers

b)

Primary consumers

c)

Secondary consumers

d)

Tertiary consumers

7.

If the original amount of energy in an energy pyramid is 10,000 kcal what amount if left for the apex predators?

a)

0.10 kcal

b)

1 kcal

c)

10 kcal

d)

100 kcal

8.

How much energy is lost when organisms consume another organism from a different level?

a)

10%

b)

20%

c)

50%

d)

90%

9.

Where do producers get their energy?

a)

Decomposers

b)

Earthworms

c)

Garbage

d)

Sun

e)

Soil

10.

Organisms who produce their own food are called ____________.

a)

Autotrophs

b)

Carnivores

c)

Herbivores

d)

Heterotrophs

11.

These organisms exist within every trophic level giving nutrients back to the soil.

a)

Bees

b)

Birds

c)

Decomposers

d)

Plants

12.

Which is the best description of mutualism?

a)

When two or more organisms eat the same food

b)

When two or more organisms rely on each other for survival

c)

When two or more organism get energy from the sun

d)

When two or more organisms compete for survival

13.

Which of the following relationships best represents a predator/ prey relationship?

a)

bees and flowers

b)

owls and mice

c)

beavers and fish

d)

fish and water

14.

Describe the direction of the arrows in the food web. What are they indicating?

a)

Be Ready to Answer this question

b)

Click the box above ^ (don't click this box)

15.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
16.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
17.

What would happen to the population of snakes and rabbits if the hawks were removed from the ecosystem?

a)

Rabbits and Snakes would die off

b)

Rabbits and Snakes would overpopulate

c)

Rabbits and Snakes would be consumed by the wolf

d)

Rabbits and Snakes would not be affected

18.
A diagram of a food web is shown below.Which organism receives the least amount of energy from the producers?
a)
Hawk
b)
Rabbit
c)
Grasshopper
d)
Mouse
19.
A food web consists of?
a)
Many overlapping food chains in an ecosystem.
b)
A series of events in which one organism eats another and obtains energy.
c)
Amount of energy that moves from one feeding level to another.
d)
Many types of insects that are stuck.
20.
What is the study of the interactions among organisms and  between organisms and their environments called?
a)
Biology
b)
Ecology
c)
Astronomy
d)
Biosphere