Question

The energy at 1st trophic level 1000calories. the energy is transferred from 1st level to 4th level.the energy of 4th level is

Answer 1

1 joule of energy will be left.
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Answer 2

A pyramid of energy represents how much energy, initially from the sun, is retained or stored in the form of new biomass at each trophic level in an ecosystem. Typically, about 10% of the energy is transferred from one trophic level to the next, thus preventing a large number of trophic levels.