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Question

Which of the following is part of the sympathetic nervous system in earthworms?

A
Nerve ring
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B
Dorsal nerve cord
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C
Ventral nerve cord
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D
Nerve plexus
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Solution

The correct option is D Nerve plexus
The nerve plexus is a network of nerves that carry sensory inputs and muscular responses from the cerebral ganglion to various parts of the body. It is part of the sympathetic nervous system in earthworms which controls all of the involuntary responses of the body and regulates bodily functions.
The central nervous system consists of the nerve ring and ventral nerve cord whereas the peripheral nervous system comprises all the nerves that arise from the ventral nerve cord.

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