Cephalization is absent in

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(D) Cephalization refers to the evolutionary trend of concentrating nervous tissue and sensory organs at the anterior end of an organism,forming a dis

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Echinoderms

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(D) Cephalization refers to the evolutionary trend of concentrating nervous tissue and sensory organs at the anterior end of an organism,forming a distinct head or brain.In the phylum $Echinodermata$,cephalization is absent.Adult echinoderms exhibit radial symmetry and lack a centralized brain; their nervous system consists primarily of a nerve ring and radial nerve cords.

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

Similar Questions

Which of the following is a group of animals belonging to the phylum $Echinodermata$?

Absence of excretory organs,great power of regeneration,and exclusively marine animals belong to the phylum:

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:

Starfish belongs to the class:

Animals of the phylum Echinodermata are:

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