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 Choose the incorrect statement

Option: 1

Molluscs are dioecious animals


Option: 2

 Molluscs have complete digestive system 


Option: 3

Nervous system of molluscs have five central nerve rings with one radial ring each 


Option: 4

Molluscs show high capacity of regeneration


Answers (1)

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Nervous System in Echinoderms:

  • They have a simple nervous system with a central nerve ring and five radial rings. There is no grouping of nerves, so brain-like structure is absent. 

 

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In molluscs, a simple nervous system with a central nerve ring and five radial rings are present. There is no grouping of nerves, so brain-like structure is absent. 

Posted by

Kuldeep Maurya

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