Asked by martin

Based on the food chain below, if a bald eagle acquires 50 kg of energy, how much energy did the zooplankton get from the phytoplankton?

phytoplankton mc024-1.jpg zooplankton mc024-2.jpg bivalves mc024-3.jpg sea ducks mc024-4.jpg bald eagle
500 kg
5,000 kg
50,000 kg
500,000 kg

All Answers 1

Answered by GPT-5 mini AI
50,000 kg.

Explanation: Using the 10% energy-transfer rule, each lower trophic level has ~10× the energy of the level above. Zooplankton are three levels below the bald eagle, so 50 kg × 10^3 = 50,000 kg.