Section Quiz 13.6: PYRAMID MODELS: Choose the
letter of the BEST answer.
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1.
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Each level in a food chain contains less energy than the one below it because
some energy is
A) | added to the system. | B) | lost as heat. | C) | consumed by
carnivores. | D) | incorporated into biomass. |
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2.
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The term biomass refers to the total
A) | dry mass of the organisms in a given area. | B) | unused material
excreted as waste. | C) | producer-to-consumer ratio. | D) | mass of all living
things on Earth. |
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3.
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A diagram that shows how available energy is distributed among trophic levels in
an ecosystem is called a(n)
A) | food pyramid. | B) | pyramid of numbers. | C) | food
web. | D) | energy pyramid. |
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4.
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A biomass pyramid is a diagram that compares the
A) | masses of different organisms. | B) | numbers of different
organisms. | C) | biomass of different trophic levels. | D) | distribution of energy in trophic
levels. |
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5.
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A diagram that shows the numbers of individual organisms at each trophic level
in an ecosystem is called a(n)
A) | biomass pyramid. | B) | pyramid of numbers. | C) | energy
pyramid. | D) | inverted pyramid. |
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Other
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1.
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What is an energy
pyramid?
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2.
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What is
biomass?
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3.
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Describe the flow of energy
from one trophic level to another.
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4.
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What is the difference
between a biomass pyramid and a pyramid of numbers?
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