Answer:
spiracles
Step-by-step explanation:
Unscrambling the letters "pcrsiaels" gives us the word spiracles.
So the answer is:
Insects take in air through their spiracles.
Note:
Spiracles are tiny openings on the sides of an insect's body that allow air to enter the respiratory system.
The respiratory system is a network of tubes called tracheae that carry oxygen to all of the insect's cells.