The Ten Percent Law states that approximately 10 percent of the energy at one trophic level is transferred to the next higher trophic level, with the rest being used up or lost as heat. This principle influences the number of trophic levels in a food chain.
The Ten Percent Law, also known as the 10% rule, states that only about 10 percent of the energy at one trophic level actually passes on to the next higher trophic level. The rest of the energy is used up at the lower trophic level or lost to the environment as heat or incompletely digested food. This law helps explain why there are usually not more than four or five trophic levels in a food chain.
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