Asked by jay

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

All Answers 1

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

Reason: Each trophic transfer is about 10% efficient, so going down three levels (eagle → sea duck → bivalve → zooplankton) you multiply by 10^3: 50 kg × 1,000 = 50,000 kg.