Which organisms provide most of the nutrient supply in the ocean?
A) small fishes
B) large fishes
C) seaweeds
D) phytoplankton
E) zooplankton

Question

Quizplus · Accepted Answer

Phytoplankton, or microscopic plants, are the primary producers in the ocean and provide the basis of the food chain. They are responsible for up to 50% of the oxygen produced globally through photosynthesis and are a major source of nutrients for other organisms, from zooplankton to whales.

Which Organisms Provide Most of the Nutrient Supply in the Ocean