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

Vedclass · Answer

(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.

List-$I$ (Biological Name)	List-$II$ (Common Name)
$A$. Asterias	$I$. Sea urchin
$B$. Antedon	$II$. Brittle star
$C$. Echinus	$III$. Sea lily
$D$. Ophiura	$IV$. Star fish

The systematic position of echinoderms is between

Similar Questions

Match List-$I$ with List-$II$:

List-$I$ (Biological Name) List-$II$ (Common Name)

$A$. Asterias $I$. Sea urchin

$B$. Antedon $II$. Brittle star

$C$. Echinus $III$. Sea lily

$D$. Ophiura $IV$. Star fish

Choose the correct answer from the options given below:

In which animal is the water vascular system found?

Which of the following is a unique characteristic of the phylum Echinodermata?

Write the general characteristics of the phylum Echinodermata.

Radial symmetry is found in ..........

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