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Every step of energy transformation have loss. Progress through the energy chain, the amount of energy transferred would unavoidably degraded. So as the chain progress it get narrower to a pyramid shape.

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7y ago
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11y ago

because only 10% of the energy from one organism is passed to the next

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12y ago

Because less energy is avaible to organisms XP

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Q: Why does the the amount of energy decrease in trophic levels?
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Of energy gained compare to the amount of energy lost as heat at the second through fourth trophic levels?

As you climb trophic levels the general amount of energy lost is 90% so you get about 1/10 of the energy that was consumed by the animal per trophic level.


What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?

4


What does a pyramid of energy show about the amount of energy available at different trophic levels of food chain?

4


When energy is transferred between trophic levels the amount of available energy lost is about?

9o% of energy is lost at each level


The number of trophic levels in an ecological pyramid?

The number is limited by the amount of energy lost at each trophic level. Most cannot exceed 5.


What model shows the amount of energy lost during transference between trophic levels?

Food Web


What happens to the biomass of the organism as trophic levels increase?

Energy and biomass decrease as the trophic levels increase.The general rule is that only about 10% of the total energy consumed from the previous trophic level will be passed onto the next level as useable energy. As a result it takes a large biomass of producers (plants) to support the total biomass of primary consumers. The primary consumers use the energy they obtain from the plants to maintain body temperature and move or it is lost as waste. Most energy is considered to be lost as heat. This pattern is repeated for secondary consumers and so on. (This is a generality; the amount of energy transferred changes in real situations.)All life is directly related to the original energy source, in most cases the sun. The higher up you go in the trophic level, the less life (overall biomass) that can be supported by the original energy source due to the loss of energy in each level.


What is a long-term effect of the increased primary productivity of a terrestrial ecosystem?

it can be A)The ecosystem will not be able to support as many tertiary consumers. B)It will decrease the amount of energy transferred to higher trophic levels. C)The ecosystem will be able to support more organisms at higher trophic levels.Eliminate D)The ecosystem will become stagnant due to excess producers and organisms in higher trophic levels will die out.


Why does productivity diminish with increase trophic levels?

Due to poor trophic transfer efficiency, most energy is lost at higher trophic levels.


What proportion of energy is transferred from one trophic level to the next in the ecosystem?

Only about ten percent of energy is transferred from one trophic level to the next in an ecosystem. This is why the amount of animals in higher levels is smaller.


What proportion of the energy in the ecosystem is transferred from one trophic level to the next?

Only about ten percent of energy is transferred from one trophic level to the next in an ecosystem. This is why the amount of animals in higher levels is smaller.


How is energy is transferred through trophic levels?

Trophic levels are the positions of organisms in a food chain. Energy is transferred through the trophic levels through ingestion at each level.