Question

Cockroaches and snails have hard outer skeleton
Ans. in short
​

Answer 1

Answer:

Snails move with the help of a muscular foot. The body and legs of cockroaches have hard coverings forming an outer skeleton. The muscles of the breast connected with three pairs of legs and two pairs of wings help the cockroach to walk and fly.

Answer 2

Answer:

Insects, including the cockroach, have what's called an exo-skeleton. Cockroaches do not have bones inside their bodies, insted they have a skeleton made of plates on the outside of its body. The cockroach skeleton resembles a suit of armor which covers the entire insect.