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Plankton vs Theca - What's the difference?

plankton | theca |

As nouns the difference between plankton and theca

is that plankton is plankton while theca is (biology) any external case or sheath.

plankton

English

(wikipedia plankton)

Noun

(en-noun)
  • a generic term for all the organisms that float in the sea. A single organism is known as a plankter

    • Derived terms

    {{der3, aeroplankton , bacterioplankton , epiplankton , femtoplankton , holoplankton , macroplankton , megaplankton , meroplankton , mesoplankton , microplankton , nanoplankton , phytoplankton , picoplankton , planktonic , pseudoplankton , zooplankton}}

    Related terms

    {{rel3, plankter , planktic , planktology , planktotrophic}}

    theca

    English

    Noun

    (en-noun)
  • (biology) Any external case or sheath.
  • (botany) The pollen producing organ usually found in pairs and forming an anther.
  • (medicine) The twin layers of cells surrounding the basal lamina of an ovarian follicle
  • (microbiology, planktology) The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates
  • (coral science) The calcareous wall of a corallite, the exoskeleton of a coral polyp

    • Derived terms

    {{der3, thecal , thecate , thecoma , epitheca , ootheca , gnathotheca , hypotheca , spermatheca , theca externa , theca interna , theca folliculi}}

    Related terms

    * thecium

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