Question

How is the body of a molluscs organized

Answer 1

Bodies of molluscs are subdivided into three parts:

*The head that contains the sensory organs and the mouth that contains the radula and odontophores (absent in bivalves).

*The foot is a muscular organ, typical of molluscs, intended for locomotion. It has different shapes depending on the species.

*The visceral mass, as the name suggests, contains the viscera. It is contained in a thin tunic called the coat. It is the mantle that secretes the shell of most molluscs, which serves as protection and / or skeleton and / or regulator of flotation.

Between the mantle and the visceral mass, the pallial rim constitutes a pallial cavity that protects the respiratory organs, and where the metanephridia (excretory organs), the intestine and the genital ducts open.

Answer 2

Answer:

The body plan of a mollusk usually consists of a head, foot and visceral mass

Explanation:

Mollusca is the second largest phylum of invertebrate animals. The members are known as molluscs or mollusks. Mollusca is the second largest phylum of invertebrate animals. The members are known as molluscs or mollusks. The body plan of a mollusk usually consists of a head region, a muscular foot, and a visceral mass of internal organs that is often contained within a dorsal shell.