Energy Flow in Ecosystems Answers

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Which organism is an example of a producer?

A
moth
B
mushroom
C
rose bush
D
cheetah
2
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A diagram illustrates that grass is eaten by insects, birds, and mice. The insects are eaten by hawks, snakes, and toads. The birds and mice are eaten by foxes, hawks, and snakes. The toad is also eaten by the snake. Which best describes the diagram?

A
pyramid
B
food chain grid
C
food web
D
trophic level
3

Which is an interconnection of food chains in an ecosystem?

A
food web
B
trophic chain
C
energy web
D
producer web
4

In the food chain below, which is the producer?grass mouse snake hawk

Question illustration
A
grass
B
mouse
C
snake
D
hawk
5

Maggots feed on dead and decaying organisms for energy. What are maggots?

A
autotrophs
B
producers
C
decomposers
D
heterotrophs
6

Which process do plants use to turn sunlight into food energy?

A
photosynthesis
B
cellular respiration
C
transpiration
D
evaporation
7

Which organisms are heterotrophs?

A
photosynthesizers
B
producers
C
consumers
D
plants
8

What might happen to the organisms in the food web below if the number of phytoplankton and vegetation drastically decreased?

Question illustration
A
The small fish and wading birds would be affected.
B
Only the small fish would be affected.
C
The small fish, bivalves, and invertebrates would be affected.
D
The entire food web would be affected.
9

Which is the primary consumer in this food chain?

Question illustration
A
rabbit
B
grass
C
snake
D
hawk
10

What is shown in the image below?

Question illustration
A
food chain
B
trophic chain
C
food web
D
energy web

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