Question

which one of the following organisms lack muscles and skeleton for movement?​

Answer 1

Answer:

Snail

Explanation:

Snail does not have both muscles and skeleton for movement. The shell (i.e. external skeleton) serves for muscles attachment and protection.

Answer 2

Answer:

Snail does not have both muscles and skeleton for movement. The shell (i.e. external skeleton) serves for muscles attachment and protection. The movement is carried out only with the help of large disc-shaped muscular foot that has two sets of muscles.