What are the 3 reasons there is less biomass as you move up the food web

In fact, only about ten per cent of the biomass is transferred from each trophic level to the next. The remaining 90 per cent is used by the trophic level to complete life processes . Biomass can be lost between stages because not all of the matter eaten by an organism is digested.

Explanation:

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.

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