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Earthworm

Which of thes...

Question

Which of these help earthworm to move?

A

Expansion and contraction of their body

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B

Hard shells

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C

Exoskeleton

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D

Endoskeleton

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Solution

The correct option is A Expansion and contraction of their body
Locomotion of earthworm is the outcome of muscular actions of the whole body. They have two sets of muscles, circular muscles in each segment and longitudinal muscles running along the whole length of the body. Continuous expansion and contraction of muscles help them to move. Additional structures called setae help the worms to grip soil particles.

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