Why is the nerve ring considered the brain of | vedclass

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(B) $\rightarrow$ The pair of circum-pharyngeal connectives connects the supra-pharyngeal ganglia (cerebral ganglia) with the sub-pharyngeal ganglia,f

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It integrates sensory input and commands muscular responses.

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(B) $\rightarrow$ The pair of circum-pharyngeal connectives connects the supra-pharyngeal ganglia (cerebral ganglia) with the sub-pharyngeal ganglia,forming a nerve ring around the pharynx.$\rightarrow$ The cerebral ganglia,located dorsally,act as the brain by integrating sensory inputs from the body and coordinating muscular responses,thus controlling the earthworm's behavior.

Why is the nerve ring considered the brain of the earthworm?

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