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LS 2.3Energy Groups: Food Chains, Food Webs, Energy Pyramids

Total questions: 28

Worksheet time: 45mins

Name
Class
Date
1.

Which of the following organisms is a herbivore?

a)
butterfly
b)
snake
c)
fox
d)
ladybird
2.

Which of the following organisms is a carnivore?

a)

greenfly

b)

ladybug

c)

mouse

d)

buzzard

3.
The owl receives energy from which organisms?
a)
grasshopper and mouse
b)
mouse and rabbit
c)
rabbit and butterfly
d)
butterfly and frog
4.
How many predators does the squid have?
a)
1
b)
2
c)
3
d)
4
5.
Name the producers in this food web.
a)
seagull and fish
b)
penguin and crab
c)
phytoplankton and seaweed
d)
seaweed and zooplankton
6.
They caracal is prey to which animal?
a)
snake
b)
mouse
c)
grasshopper
d)
baboon
7.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
8.

What are animals and insects called in a food chain?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Plants

9.
What's the role of consumers in a food chain?
a)
Use sunlight to make food 
b)
Eat other species and keep them from overpopulating
c)
Break down dead stuff
d)
Add nutrients to the soil
10.
What is the role of decomposers in a food chain?
a)
Use sunlight to make food
b)
Eat other organisms to gain energy
c)
Make the food for the whole food chain
d)
Break down dead organisms and add nutrients to the soil
11.
Which of these organisms would receive energy from the snake?
a)
Plant
b)
Rabbit
c)
Mouse
d)
Hawk
12.

Why is the base of an energy pyramid wider than the top?

a)

There are usually many more producers than top predators

b)

Only a small part of energy can be passed from a lower level

c)

Both a and b are true

d)

Neither a or b is true

13.

If most of the rabbits on an island became sick and died, what would likely result

a)

The population of eagles would increase

b)

The population of ladybugs would probably increase

c)

The population of blue jays would probably increase

d)

The population of foxes would probably decrease

14.

Which list shows a group of living things in the correct sequence within a food chain?

a)

leaves -> deer -> wolf

b)

black bear -> insects -> salmon

c)

dog -> parakeet -> hamster

d)

snake -> moose -> berries

15.

Organisms in a food chain that are able to make their own food -

a)

consumers

b)

herbivores

c)

omnivores

d)

producers

16.

What is the bottom layer of the an energy pyramid?

a)

producer

b)

tertiary consumer

c)

Secondary consumer

d)

primary consumer

17.

What does an energy pyramid show?

a)

Energy flow in an ecosystem

b)

Longest lifespans

c)

The stronger animal the higher it is on the pyramid

18.

What would happen if there were no producers?

a)

Every population would grow larger

b)

Everything would die out

c)

The animals would make their own food

19.

A position that an organism occupies based on what it eats is called a

a)

Producer

b)

Trophic level

c)

Heterotroph

d)

Consumer

20.

Makes its own food

a)

Herbivore

b)

Carnivore

c)

Heterotroph

d)

Autotroph

21.
In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
a)
10%
b)
20%
c)
80%
d)
90%
22.

An energy pyramid represent the relative amount of energy in trophic levels. Which of the following correctly shows an energy pyramid?

a)
A
b)
B
c)
C
d)
D
23.
A third-level consumer has to be which type?
a)
Carnivore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
24.
All the organisms on earth get their energy directly or indirectly from?
a)
Oxygen
b)
Water 
c)
Nitrogen
d)
The Sun
25.
The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain members of the plant kingdom?
a)
A
b)
B
c)
C
d)
D
26.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
27.

Cannot make its own food

a)

Autotroph

b)

Producer

c)

Heterotroph

d)

Biomass

28.

What's the role of decomposers in a food chain?

a)

Use sunlight to make food

b)

Eat other species and keep them from overpopulating

c)

Break down dead stuff

d)

Add nutrients to the soil

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