EVERYDAY SCIENCE

Detailed explanation-1: -The mollusk body has a cavity divided into parts like a head, muscular foot, visceral mass, and mantle. They are usually covered with a calcareous shell. They have a complete digestive system, a coelom, and special organs for excreting wastes.

Detailed explanation-2: -visceral mass: the soft, non-muscular metabolic region of the mollusc that contains the body organs. mantle: the body wall of a mollusc, from which the shell is secreted. radula: the rasping tongue of snails and most other mollusks.

Detailed explanation-3: -The visceral hump, or visceral mass, of gastropods is always contained within the shell; it generally holds the bulk of the digestive, reproductive, excretory, and respiratory systems. A significant part of the visceral hump consists of the mantle, or pallial, cavity.

Detailed explanation-4: -All mollusks have a visceral mass, a mantle, and a foot. The visceral mass contains the digestive, excretory, and reproductive organs.

Detailed explanation-5: -There are three distinct body parts in Mollusca. The head, muscular foot, and visceral hump are the body parts of a Mollusca.