In a food chain, producers hold 20 000 kJ of energy. By the 10% rule, how much reaches the secondary consumers?

Answer and explanation

Correct answer: D. 200 kJ

  1. Step 1: Primary consumers get about 2 000 kJ and secondary consumers about 200 kJ.
Answer
200 kJ.
Why not the others: 2 000 kJ is the value for the previous level.

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