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Structural Organisation in Animals question

2008 · Q57
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Structural Organisation in Animals question

2008 · Q57

NEETBiologyStructural Organisation in AnimalsMCQ+4 / −1
Earthworms have no skeleton but during burrowing the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to:
  1. A
    coelomic fluid
  2. B
    gut peristalsis
  3. C
    blood
  4. D
    setae
View written solutionFree

Correct answer: A

Earthworms have no skeleton but during burrowing, anterior end becomes turgid and acts as a hydraulic skeleton. It is due to coelomic fluid. The coelom is filled with an alkaline milky coelomic fluid. This coelomic fluid contains water, salts, proteins and 4 types of cells namely amoebocytes, mucocytes, circular cells and chloragogen cells.

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