Visceral hump in a mollusc is covered by

Visceral hump in a mollusc secrete the mantle.

The visceral hump in a mollusc is covered by the mantle.

The mantle is a specialized fold of tissue that envelops the mollusc's internal organs, forming a protective cavity. It's analogous to a cloak, hence the name. The mantle plays a crucial role in various functions, including:

• Shell formation: In many molluscs, the mantle secretes the calcium carbonate that forms the shell.
• Respiration: The mantle cavity houses the gills, where gas exchange occurs.
• Excretion: Waste products are often expelled through the mantle cavity.

Therefore, the mantle is not just a covering; it's an active and multifunctional organ vital to the mollusc's survival.