anal pore
The 'anal pore' is a specialized structure in various organisms for waste elimination, distinct from the anus in higher animals.
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Definition
C1Microbiology
(technical)A structure in single-celled organisms where waste is expelled after nutrient absorption.
Example
- The paramecium expels waste through its anal pore after digesting food.
C1Invertebrate Zoology
(technical)An opening in certain invertebrates and fish for the elimination of solid waste.
Example
- The sea cucumber releases waste through its anal pore.