OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Porifera
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Cnidaria
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Echinodermata
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Mollusca
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Detailed explanation-1: -Organisms belonging to the phylums Coelenterata, Echinodermata and Ctenophora exhibit radial symmetry.
Detailed explanation-2: -Radial Symmetry This form of symmetry marks the body plans of animals in the phyla Ctenophora (comb jellies) and Cnidaria (corals, sea anemones, and other jellies).
Detailed explanation-3: -The echinoderms have a radially arranged, pentamerous body structure that is very different from the bilateral body structure of the related deuterostome phyla, the hemichordates and the chordates.
Detailed explanation-4: -Final answer: Body symmetry in Echinodermata is radial.
Detailed explanation-5: -Diploblastic animals only have two germ layers: the inner endoderm and the outer ectoderm. Animals in the phyla Cnidaria and Ctenophora are diploblastic.