In a food chain, with each feeding relationship, the energy transferred from one organism to another will
decrease.
be independent of the level.
remain constant
increase
In a food chain, with each feeding relationship, the energy transferred from one organism to another will decrease. This concept is encapsulated by the "10% rule" in ecology, which states that, on average, only about 10% of the energy from one trophic level is transferred to the next level. The other 90% of energy is lost as heat, used up in metabolism, or locked in parts of the organism that are not consumed or assimilated by the next consumer.
Therefore, as you move up the food chain, there is less energy available at each successive trophic level. This loss of energy at each level is a significant factor limiting the length of food chains.