Which term describes planktonic organisms large enough to be seen with the naked eye, such as jellyfish?

Which term describes planktonic organisms large enough to be seen with the naked eye, such as jellyfish?

• A. Holoplankton
• B. Macroplankton
• C. Meroplankton
• D. Microbial Loop

Answer: (B)

Macroplankton is the term for planktonic organisms large enough to be seen with the naked eye, such as jellyfish. This size-based category groups bigger drifting organisms separate from the microscopic microplankton or nanoplankton. The other terms describe life-cycle timing (holoplankton spend their entire life as plankton; meroplankton are planktonic only as larvae) or a trophic concept (the microbial loop), not size.

Macroplankton is the term for planktonic organisms large enough to be seen with the naked eye, such as jellyfish. This size-based category groups bigger drifting organisms separate from the microscopic microplankton or nanoplankton. The other terms describe life-cycle timing (holoplankton spend their entire life as plankton; meroplankton are planktonic only as larvae) or a trophic concept (the microbial loop), not size.