Which of the following is observed in Echinod | vedclass

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(B) The phylum $Echinodermata$ is characterized by a unique feature where adults exhibit radial symmetry (specifically pentamerous radial symmetry),wh

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Radial symmetry

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(B) The phylum $Echinodermata$ is characterized by a unique feature where adults exhibit radial symmetry (specifically pentamerous radial symmetry),while their larvae exhibit bilateral symmetry. Among the given options,radial symmetry is the defining characteristic of adult echinoderms. Porous bodies are characteristic of $Porifera$,and bilateral symmetry is found in most other phyla like $Platyhelminthes$ to $Chordata$.

Which of the following is observed in $Echinodermata$?

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State the function of the water vascular system (tube feet) in echinoderms.

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$A$ : Echinoderms are the only radially symmetrical animals with true coelom.
$R$ : Echinoderms have secondarily adapted to radial symmetry.

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