Multiple choice

If 15000 cal of solar energy is incident on plants, how many kilocalories of energy will be transferred to the herbivores?

  1. 150

  2. 15

  3. 1.5

  4. 0.15

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

According to the 10% rule in ecology, only about 10% of energy transfers from one trophic level to the next. With 15000 calories incident on plants (producers), herbivores would receive approximately 1500 calories, which equals 1.5 kilocalories. The remaining 90% is lost as heat or used for metabolic processes.