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Structural Organisation in Animals question

2000 · Q54
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Structural Organisation in Animals question

2000 · Q54

NEETBiologyStructural Organisation in AnimalsMCQ+4 / −1
Primary function of enteronephric nephridia of Pheretima :
  1. A
    Excretion of nitrogenous waste
  2. B
    Locomotion
  3. C
    Osmoregulation
  4. D
    Respiration
View written solutionFree

Correct answer: C

Pharyngeal nephridia and septal nephridia are enteronephric as they discharge excretory matter into the gut. Discharge of waste matter via gut is an adaptation to conserve water by its reabsorption in the gut. Integumentary nephridra are exonephric, as they discharge waste matter to the exterior.

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