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Energy Flow

Total questions: 20

Worksheet time: 27mins

Name
Class
Date
1.

In a trophic pyramid, which trophic level would have the LEAST amount of available energy?

a)

The producers

b)

The primary consumers

c)

The secondary consumers

d)

The tertiary consumers

2.
Who is the top predator on this food web?
a)
Hawk
b)
Snake
c)
Frog
d)
Cattail
3.
The mouse in this food web would be considered a:
a)
Primary Consumer
b)
Producer
c)
Tertiary Consumer
d)
Secondary Consumer
4.

A worm is a/an

a)

autotroph

b)

heterotroph

5.
In the energy pyramid here, how much of the energy in each level gets LOST as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
6.
In this food chain, what will happen if the frogs become extinct?
a)
The snakes will increase.
b)
The grasshoppers will decrease.
c)
The eagles will remain the same.
d)
The grasshoppers will increase.
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.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
9.
What is indicated by the diagram?
a)
Food web
b)
Food chain
c)
Food map
d)
Food menu
10.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
11.

Consumers, such as vultures, that feed on the bodies of dead organisms

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

12.
The owl receives energy from which organisms?
a)
grasshopper and mouse
b)
mouse and rabbit
c)
rabbit and butterfly
d)
butterfly and frog
13.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
14.
What is pictured in the diagram?
a)
A food web
b)
A food chain
c)
An energy pyramid
15.
In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?
a)
80%
b)
90%
c)
10%
d)
20%
16.
Name the producers in this food web.
a)
seagull and fish
b)
penguin and crab
c)
phytoplankton and seaweed
d)
seaweed and zooplankton
17.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
18.

Look at the food web. What would most likely happen if another producer was planted within the ecosystem?

a)

The omnivores will decrease

b)

The carnivores will decrease

c)

The herbivores will increase

d)

The decomposers will decrease

19.

Given the food chain: grass -> small fish ->

large fish -> bear, where would you place the large fish on the trophic pyramid?

a)

The bottom

b)

The second level from the bottom

c)

The third level from the bottom

d)

The top

20.
What may happen if the snowshoe hare was removed from the food web pictured?
a)

The insect populations would increase.

b)

The shrew population would decrease.

c)

The willow tree population would decrease.

d)

The fox population would decrease.

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