Plankton is comprised of photosynthetic protists and bacteria.What is the primary importance of plankton to humans?
A)They are food for many marine organisms that humans eat.
B)They release a lot of carbon dioxide into the atmosphere.
C)They contribute to the formation of anaerobic dead zones in the oceans.
D)They form the basic building blocks in the formation of petroleum (oil).

Question

Quizplus · Accepted Answer

Plankton serves as the base of the marine food chain and is the primary food source for many marine organisms that humans eat, including fish, shrimp, and shellfish.

Plankton Is Comprised of Photosynthetic Protists and Bacteria