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Which of the following structures represent the nervous system of an earthworm?

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in Biology – Class 11 by (272k points)
Which of the following structures represent the nervous system of an earthworm?

(a) Ganglia

(b) Notochord

(c) Vertebral column

(d) Brain

This question was addressed to me in a job interview.

This interesting question is from Animals topic in portion Structural Organisations in Animals of Biology – Class 11

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Correct option is (a) Ganglia

For explanation I would say: Nervous system of the earthworm is represented by ganglia arranged segment-wise on the ventral paired nerve cord. The nerve cord on the anterior region bifurcates, laterally encircling the pharynx and joins the cerebral ganglia dorsally to form a nerve ring.

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