FORESTRY
ECOLOGY AND ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There is more energy available at higher levels.
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Higher levels have more mean animals.
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There is less energy available at higher levels.
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Predators get hungrier.
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Detailed explanation-1: -The number of organisms at each level decreases relative to the level below because there is less energy available to support those organisms. The top level of an energy pyramid has the fewest organisms because it has the least amount of energy.
Detailed explanation-2: -As we go up a food chain, the amount of energy available decreases. This is because living things use up most of the energy in the food they eat. An energy pyramid shows how energy is lost at each level.
Detailed explanation-3: -This is because, in order for the ecosystem to sustain itself, there must be more energy at lower trophic levels than there is at higher trophic levels. This allows organisms on the lower levels to not only maintain a stable population, but also to transfer energy up the pyramid.