S - Statement: Some species of Coelenterata e | vedclass

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(C) $1$. Polymorphism is a phenomenon where an organism exists in more than one morphological form. In $Coelenterata$ (Cnidaria),many species exhibit

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$S$ is true and $R$ is false.

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(C) $1$. Polymorphism is a phenomenon where an organism exists in more than one morphological form. In $Coelenterata$ (Cnidaria),many species exhibit polymorphism by existing in two body forms: polyp and medusa.$2$. The polyp form is typically sessile and cylindrical (e.g.,$Hydra$,$Adamsia$),while the medusa form is umbrella-shaped and free-swimming (e.g.,$Aurelia$).$3$. In the life cycle of $Obelia$,both forms alternate (metagenesis). The polyp produces medusae asexually,and the medusae produce polyps sexually.$4$. Therefore,the statement $S$ is true. However,the reason $R$ is false because the medusa is typically the sexual stage,not the asexual stage.

$S$ - Statement: Some species of $Coelenterata$ exhibit polymorphism.
$R$ - Reason: In $Coelenterata$,the medusa form is observed as the asexual stage.

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$S$ - Statement: Some species of $Coelenterata$ exhibit polymorphism.$R$ - Reason: In $Coelenterata$,the medusa form is observed as the asexual stage.