Energy Transfer Answers

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How are gross production and net production different?

A
Net production is always greater than gross production.
B
Net production is always less than gross production.
C
Only animals have net production.
D
Only plants have net production.
23
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The relationship between the amount of energy available for use and the amount of entropy in a food chain differs between trophic levels. Why would the amount of entropy increase from one trophic level to another in a food chain or energy pyramid?

A
the available energy from one trophic level to another increases
B
energy is lost at each level as heat, which increases randomization
C
the amount of biomass decreases from one trophic level to another
D
the available energy at each level may either increase or decrease, creating randomization
24

Carnivores that feed on other carnivores are _______.

A
tertiary consumers
B
secondary consumers
C
primary consumers
D
producers
28

Which of the following statements about entropy is true?

A
Entropy increases going from one trophic level to another.
B
Increases in entropy lead to reversible processes.
C
A system’s work output is limited when changes in entropy do not occur.
D
All of the above
29

Which of the following levels is the most efficient at energy conversion?

A
producers
B
primary consumers
C
secondary consumers
D
tertiary consumers

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