Multiple choice

When energy is transferred between trophic levels, the amount of available energy lost is about

  1. 90%

  2. 50%

  3. 25%

  4. 10%

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

According to the 10% rule in ecology, only about 10% of the energy at one trophic level is passed to the next. Therefore, approximately 90% of the energy is lost as heat or used for metabolic processes.