Radial symmetry is not found in

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(D) Radial symmetry is a type of body symmetry where an organism can be divided into identical halves by any plane passing through the central axis.$H

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Spider

Vedclass · Answer

(D) Radial symmetry is a type of body symmetry where an organism can be divided into identical halves by any plane passing through the central axis.$Hydra$ (Cnidaria) exhibits radial symmetry.Adult $Starfish$ (Echinodermata) exhibits radial symmetry (specifically pentamerous radial symmetry).$Sponges$ (Porifera) are mostly asymmetrical,though some are radially symmetrical. However,the most distinct lack of radial symmetry is found in $Spider$ (Arthropoda).$Spiders$ belong to the phylum Arthropoda,which exhibits bilateral symmetry,not radial symmetry.Therefore,the correct answer is $Spider$.

List $I$	List $II$
$A$. $Taenia$	$I$. Nephridia
$B$. $Paramoecium$	$II$. Contractile vacuole
$C$. $Periplaneta$	$III$. Flame cells
$D$. $Pheretima$	$IV$. Urecose gland

Similar Questions

Which of the following statements is incorrect?

Provide a comparative summary of the features of all phyla under the Animal Kingdom.

Select the incorrect option with respect to the features present in the three phyla: Arthropoda,Mollusca,and Chordata.

Which invertebrate phylum is characterized by the ability of regeneration?

Match List $I$ with List $II$.
List $I$ List $II$
$A$. $Taenia$ $I$. Nephridia
$B$. $Paramoecium$ $II$. Contractile vacuole
$C$. $Periplaneta$ $III$. Flame cells
$D$. $Pheretima$ $IV$. Urecose gland

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