Apentix/AP Biology/Unit 8: Ecology/Question

AP Biologyhardmcq1 pt

An ecosystem receives an input of 400,000 kJ of solar energy per square meter per year. If the primary producers convert 1% of this energy into biomass, and the trophic transfer efficiency between subsequent levels is 10%, approximately how much energy (in kJ) is available to the secondary consumers in this ecosystem?

Explanation

Core Concept

This value correctly calculates the energy available to secondary consumers: 400,000 kJ * 0.01 (producer efficiency) = 4,000 kJ. 4,000 kJ * 0.10 (primary consumer efficiency) = 400 kJ. 400 kJ * 0.10 (secondary consumer efficiency) = 40 kJ.

Correct Answer

q3_c

Practice more AP Biology questions with AI-powered explanations

Start Practicing on Apentix →