Question

why do molluscs have shell? ​

Answer 1

Explanation:

the shell is for protection

it protects it from predators and keep there internal organ safe

as the molluscs gets older its shell becomes wider and thicker

Answer 2

Answer:

As the mollusk ages, the shell becomes thicker and sturdier. As such, older mollusks usually have strong shells. The primary purpose of the shell is protection. It protects the animal against predators and guards the internal organs.