How does the exoskeleton protect the lobster?

Answer 1

They are arthropods and invertebrates; having no internal skeleton, they require an exoskeleton. They are basically underwater cockroaches (actually, they share more similarities with scorpions).

Answer 2

The exoskeleton helps the crab to protect itself from hungry predators, and it protect and supports the animal body.

Answer 3

It protects and supports the animal body. The shell is also waterproof, so if the crab goes in the water, it will still protect it from underwater predators.

Answer 4

it is hard