The amount of energy passed from one trophic level to the next decreases because?

A. many organisms are present at the first trophic level
B. many organisms occur at the higher trophic level
C. more energy is conserved at lower trophic levels
D. parts of the organisms remain unutilized at each trophic level

Correct Answer: Option D

D. parts of the organisms remain unutilized at each trophic level