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Food Web

Total questions: 31

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

The original source of energy for a food web is...

a)

plants

b)

sun

c)

producers

d)

decomposers

2.

Decomposers get energy from...

a)

the sun

b)

eating plants

c)

eating animals

d)

dead things and waste

3.

Arrows in a food web represent...

a)

eating

b)

sunlight

c)

energy

d)

matter

4.

Who is the producer?

a)

lettuce

b)

greenfly

c)

ladybird

d)

thrush

5.

The deer population has significantly increased in an ecosystem, the best hypothesis is 

a)
the deer's main predator has been eliminated
b)
competition increased
c)
decreased water levels of local ponds
d)
organisms that rely on similar food sources migrated to the area
6.
Which relationship describes predator/prey
a)
hawks and shrubs
b)
mountain lion and deer
c)
frogs and trees
d)
grasses and crickets
7.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
8.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
9.

Which type of organism should replace the X in the food web?

a)

an omnivore

b)

an herbivore

c)

a carnivore

d)

a producer

10.

Which list contains only animals that receive energy transferred directly from consumers in this food web?

a)

Red-tailed hawks, snowshoe hares, and caterpillars

b)

Snowshoe hares and caterpillars

c)

Snowshoe hares and shrews

d)

Shrews and red foxes

11.

ow many types of organisms in this food web obtain energy directly from producers?

a)

two

b)

three

c)

four

d)

five

12.

Which statement correctly describes the transfer of energy in a food chain in this wetland?

a)

Energy is transferred from hawks to shrews to grasshoppers to marsh grasses.

b)

Energy is transferred from marsh grasses to crickets to hawks to frogs.

c)

Energy is transferred from grasshoppers to crickets to frogs to hawks.

d)

Energy is transferred from cattails to crickets to shrews to hawks.

13.
Use the diagram answer the question.
What is a fitting description for this diagram?
a)
A Food Chain
b)
An Ecosystem
c)
A Food Web
d)
Biotic and Abiotic Factors
14.
Use the diagram to answer the question.
The Mayfly is a food source for which 3 organisms?
a)
Frog, Dragon Fly and snake
b)
Frog, trout and dragon fly
c)
Frog, salamander and trout
d)
Frog and phytoplankton
15.
Use the diagram to answer the question.
The trout is a source of food for the human and the eagle. When there are more than one organism vying for the same source we call this____?
a)
Population
b)
Resources
c)
Community
d)
Competition
16.
What is the best explanation for an energy pyramid?
a)
It shows the FLOW of energy from one organism to the next. 
b)
It shows HOW much energy flows through a food web
c)
It shows the MEMBERS in a single organism
17.
True or False. In this Food Web Pyramid the consumers on each level only get about 10 percent of energy that the plants have stored.
a)
True
b)
False
18.
In this Food Web Pyramid what is the proper name for the organisms above the producer level at the bottom.
a)
herbivores
b)
consumers
c)
carnivores 
d)
omnivores
19.
The deer, grasshopper, and bird are all examples of which type of consumers on this food pyramid?
a)
decomposers
b)
omnivores
c)
carnivore
d)
herbivore
20.
The snake and the frog, are all examples of which type of consumers on this food pyramid?
a)
decomposers
b)
omnivores
c)
carnivore
d)
herbivore
21.
In Australia the farmers had a problem with beetles eating the sugar cane. So they introduced the cane toad to control that population. Instead of eating the beetles, they ate the source of food and other organisms. What would be a possible consequence of this?
a)
The other organisms attacks the toad population
b)
The ecosystem would be destroyed
c)
The cane toads would get too much food and die
d)
The food web was changed by this one organism
22.
About how much percent of energy is passed on from one organism to to the next on a food web pyramid. 
a)
100 percent of all energy gets passed
b)
45 percent of all energy gets passed
c)
10 percent of all energy gets passed
d)
0 percent of all energy gets passed
23.
The direction of the flow of energy in a food web is represented by ___.
a)
Light bulbs
b)
Dotted Lines
c)
Arrows
d)
Bubbles
24.
What does every food chain start with?
a)
producers
b)
sun
c)
consumer
d)
decomposers
25.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
26.
Energy increases as you move up the food pyramid (from bottom to top).
a)
True 
b)
False
27.
Which of the following is NOT a consumer
a)
grass
b)
dog
c)
shark
d)
fish
28.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
29.
an organism that can produce its own food through photosynthesis
a)
consumer
b)
heterotroph
c)
autotroph
d)
herbivore
30.
Commensalism is
a)
one species benefits, the other is not affected
b)
both species benefit
c)
both species are harmed
d)
one species benefit, the other is harmed
31.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
d)
population

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