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Q.

What is the fold of the dorsal body wall covering the visceral mass in Mollusca known as?

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a

Shell

b

Mantle

c

Operculum

d

None of the above

answer is B.

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Detailed Solution

Concept: Mollusca is the second-largest phylum of invertebrate animals. They are referred to as molluscs.
The mantle, the presence of radula, and the structure of the nervous system are the three molluscan characteristics that are shared by all species. A tissue layer located between the body and the shell is referred to as the mantle. The mantle is the dorsal body wall that extends as flaps over the visceral mass. It is muscular. The mantle cavity serves as a brood chamber in some molluscs and a locomotory organ in cephalopods.
Hence, option 2 is the correct answer.

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What is the fold of the dorsal body wall covering the visceral mass in Mollusca known as?