Earthworms do not have an exoskeleton,but whe | vedclass

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(A) Earthworms possess a fluid-filled body cavity known as the coelom. This coelom contains coelomic fluid,which is incompressible. When the earthworm

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Coelomic fluid

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(A) Earthworms possess a fluid-filled body cavity known as the coelom. This coelom contains coelomic fluid,which is incompressible. When the earthworm burrows,the contraction of body wall muscles exerts pressure on this coelomic fluid. This pressure makes the anterior end of the body turgid,allowing it to function as a hydrostatic (hydraulic) skeleton,which helps the earthworm in digging and moving through the soil.

Earthworms do not have an exoskeleton,but when burrowing,the anterior end becomes turgid and acts as a hydraulic skeleton due to the presence of:

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