Energy Flow in Ecosystems Answers

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1
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Why are mushrooms important to the food chain?

A
They recycle nutrients into the ecosystem.
B
They produce food energy for other living things.
C
They recycle oxygen into the atmosphere.
D
They consume excess herbivores in the ecosystem.
2
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From the producer level to which level does energy flow directly?

A
decomposer
B
tertiary consumer
C
secondary consumer
D
primary consumer
3

Which kind of organism is an autotroph?

A
consumer
B
producer
C
decomposer
D
herbivore
4

Which organism is a primary consumer in the food web below?

Question illustration
A
herbivorous duck
B
bald eagle
C
osprey
D
vegetation
5

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.
6

What is shown in the image below?

Question illustration
A
food chain
B
trophic chain
C
food web
D
energy web
8

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

A
photosynthesis
B
cellular respiration
C
transpiration
D
evaporation

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