Question

how does a cockroach does it respire?

Answer 1

Cockroaches breathe through the tiny holes called spiracles which are present along the side of their body. Oxygen enters the cockroach through these holes and follows the tiny breathing tubes called tracheae to all of the cockroach's body parts.

Answer 2

Cockroaches respire through trachea (system of tubes) which are attached to the spiracles.