Energy Flow In Ecosystems - Biology Worksheet With Answers Page 7
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1517. The energy pyramid below shows a possible amount of energy, in kilocalories, available in the organisms
at each trophic level in an ecosystem.
According to the law of conservation of energy, energy can neither be created nor destroyed. If this is true, why
is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?
Energy is lost between each trophic level as heat.
A.
The extra energy in the bottom is slower to reach the top.
B.
Organisms in the top of the energy pyramid use up energy the fastest.
C.
The law of conservation of energy does not apply to ecosystems.
D.
18. Technology Enhanced Questions are not available in Word format.
19. As energy flows through ecosystems, atoms and molecules cycle among
A. only the living components of the biosphere.
B. neither the living nor the nonliving components of the biosphere.
C. only the nonliving components of the biosphere.
D. both the living and nonliving components of the biosphere.
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