Well, I'm assuming you mean the insect 'beetles' not 'Beatles' the 60's pop group :D
but yes, the insect beetles have exoskletons.
flies, beatles, bees, hornets, and so on.
they have exoskeleton
Yes; many cnidarians have an exoskeleton.
A butterfly has an exoskeleton. The exoskeleton appears when the caterpillar undergoes the metamorphosis process. It is the pup that dissolves and becomes the exoskeleton.
An exoskeleton.
The Exoskeleton
Exoskeleton is a noun.
No, an angelfish does not have an exoskeleton.
exoskeleton.
Yes, corals are composed of an exoskeleton
exoskeleton
When an insect sheds its outer skin, it's called molting.