[hol-uh-plangk-tuh n, hoh-luh-] /ˌhɒl əˈplæŋk tən, ˌhoʊ lə-/

that spend their entire life cycle as free-swimming organisms (opposed to ).
organisms, such as diatoms and algae, that spend all stages of their life cycle as plankton Compare meroplankton
(hŏl’ə-plāngk’tən, hō’lə-)
Plankton that remains free-swimming through all stages of its life cycle.


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