The systematic position of echinoderms is bet | vedclass

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(C) The correct answer is $C$. Echinoderms are considered to be the closest invertebrate relatives of chordates. This is supported by several evolutio

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Molluscs and Chordates

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(C) The correct answer is $C$. Echinoderms are considered to be the closest invertebrate relatives of chordates. This is supported by several evolutionary evidences: $1$. Both groups exhibit radial and indeterminate cleavage during embryonic development. $2$. Both are $Deuterostomes$,meaning the blastopore develops into the anus. $3$. Both possess an enterocoelic coelom,which is formed from the outpocketing of the embryonic gut. Therefore,in the evolutionary hierarchy,echinoderms are placed between molluscs and chordates.

Column-$I$	Column-$II$
$(i)$ Asterias	$(a)$ Brittle star
$(ii)$ Echinus	$(b)$ Sea lily
$(iii)$ Antedon	$(c)$ Sea urchin
$(iv)$ Ophiura	$(d)$ Star fish

The systematic position of echinoderms is between

Similar Questions

Match column-$I$ with column-$II$ :
Column-$I$ Column-$II$
$(i)$ Asterias $(a)$ Brittle star
$(ii)$ Echinus $(b)$ Sea lily
$(iii)$ Antedon $(c)$ Sea urchin
$(iv)$ Ophiura $(d)$ Star fish

Which of the following is a characteristic feature of the phylum $Echinodermata$?

What does the water vascular system consist of?

Absence of excretory organs,high power of regeneration,and exclusively marine; these are the characteristics of the phylum:

Which structure is used for locomotion in starfish?

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