Question

choose the correct answer. using the 10% rule when studying trophic pyramids, if the producers at the first trophic level produce 1000 joules of energy, how much energy is passed on to the carnivores at the third trophic level? 10 joules 25 joules 100 joules

Explanation:

Step1: Calculate energy at second trophic level

According to the 10% rule, energy at second trophic level (primary consumers) is \(1000\times10\% = 100\) Joules.

Step2: Calculate energy at third trophic level

Energy at third trophic level (secondary consumers, which are carnivores here) is \(100\times10\%=10\) Joules.

Answer:

10 Joules