Which term describes free-floating organisms that drift with currents and cannot swim against them?

Which term describes free-floating organisms that drift with currents and cannot swim against them?

• A. Nekton
• B. Phytoplankton
• C. Plankton
• D. Plankter

Answer: (C)

Plankton are organisms that drift with the water and are carried by currents, with little ability to swim against them. Nekton are the swimmers—animals that actively move through the water, like fish and squid. Phytoplankton are the photosynthetic members of the drifting community, but the term that describes the entire drifting group is plankton. Plankter is not the standard label used in most textbooks. So, the best term for free-floating organisms that drift with currents and cannot swim against them is plankton.

Plankton are organisms that drift with the water and are carried by currents, with little ability to swim against them. Nekton are the swimmers—animals that actively move through the water, like fish and squid. Phytoplankton are the photosynthetic members of the drifting community, but the term that describes the entire drifting group is plankton. Plankter is not the standard label used in most textbooks. So, the best term for free-floating organisms that drift with currents and cannot swim against them is plankton.