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Which of the following is true w.r.t nerve ring of annelids?
Option: 1
It is made up of fused ganglia
Option: 2
It is present around the pharynx
Option: 3
Both A and B
Option: 4
None of these
Answers (1)
Nervous System and Sense Organs in Annelida:
- The nervous system is well developed in annelids. They bear a nerve ring made up of fused ganglia around the pharynx. They have a ventral nerve cord. The nerve cord shows the branching of ganglia in each segment.
- In marine free-living annelids, tentacles, chemical receptors, statocysts and eye-spots are present.
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The nervous system is well developed in annelids. They bear a nerve ring made up of fused ganglia around the pharynx. They have a ventral nerve cord. The nerve cord shows the branching of ganglia in each segment
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