Question

3. Hard outer skeleton found in a cockroach​

Answer 1

Answer:

exoskeleton - chitin

Explanation:

Most cockroaches have three joints on each leg, which means they have 18 knees! The skeleton is made of a hard substance called chitin. When a skeleton is on the outside, it is called an exoskeleton. The exoskeleton supports and protects the roach's insides.

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Answer 2

Answer:

Most cockroaches have three joints on each leg, which means they have 18 knees.

The skeleton is made of a hard substance called chitin.

When a skeleton is on the outside, it is called an exoskeleton.

The exoskeleton supports and protects the roach's insides.

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