Ecological efficiency, described as the percentage of energy at one trophic level that ends up in tissue in the next level, is approximately ____ to ____%.
A)1; 5
B)1; 20
C)5; 30
D)10; 40
E)50; 60

Question

Quizplus · Accepted Answer

Ecological efficiency is typically around 5-30%. Only a small portion of the energy from one trophic level is transferred to the next level. The majority of the energy is lost through metabolic processes, heat dissipation, and waste. Choice A is too low, as more than 5% of energy is typically transferred. Choice E is too high, as less than 60% of energy is typically transferred. Choice B is also too high. Choice D is a possible alternative but includes a slightly higher range than the commonly accepted range.

Ecological Efficiency, Described as the Percentage of Energy at One