Body wall of Hemichordates is composed of

Only epidermis

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Only dermis

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Epidermis and dermis both

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Mucous glands

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Solution

The correct option is A Only epidermis
Hemichordata is a phylum of marine deuterostome animals. They show characteristics of both Echinoderm and Chordates. They show bilateral symmetry and are triploblastic. Body is unicellular and is composed of epidermis. Body consists of three regions, proboscis, collar and trunk.
Thus, the correct answer is option A.

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