Which of the following limits the number of trophic levels in a food chain?
A. Decrease in energy at higher trophic levels
B. Deficient food supply
C. Polluted air
D. Water
Answer:A
Which of the following limits the number of trophic levels in a food chain?
A. Decrease in energy at higher trophic levels B. Deficient food supply C. Polluted air D. Water