ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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energy decreases as you go up the food chain, just like the pyramid shape gets smaller as you go up.
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energy increases up the food chain just like the pyramid shape gets smaller as you go up.
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energy amounts are the same at each trophic level
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the pyramid is the most efficient shape
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Detailed explanation-1: -An energy pyramid shows the flow of energy at each trophic level in an ecosystem. A pyramid shape is used because energy is lost at each trophic level when organisms use it up.
Detailed explanation-2: -The pyramid shape is used because it can represent energy available at every trophic level. The level will always get smaller as you go up the pyramid. The pyramid shape is also used because it represents the number of organisms at each trophic level.
Detailed explanation-3: -A pyramid of energy shows how much energy is retained in the form of new biomass at each trophic level, while a pyramid of biomass shows how much biomass (the amount of living or organic matter present in an organism) is present in the organisms.
Detailed explanation-4: -Primary producers always make up the first trophic level as they are the basis of all other nutrition. Various consumers occupy every other level. The shape of a pyramid is used to show the difference in the amount of energy at each trophic level in a food web.