Question

About 10 percent of energy stored as biomass in a trophic level is passed from one level to the next. This is known as “the 10 percent rule” and it limits the number of trophic levels an ecosystem can support. If the first trophic level produces 2000 calories, how many calories are passed to the second trophic level of consumers?

Answer 1

Answer:

20 calories will be passed to the secondary consumers.

Explanation:

• Primary producers produce 2000 calories.
• 10 % will go to the primary consumers (2nd level in the pyramid scheme) = 200 calories
• 10 % from 2nd level in the pyramid scheme will go to the secondary consumers = 20 calories

Hope this will help :)