Question

Insects breathe through tiny holes in their abdomen called what? ​

Answer 1

Answer:

spiracles

........,................

Answer 2

Answer:

Tracheae

Explanation:

Air enters the respiratory systems of insects through a series of external openings called spiracles. These external openings, which act as muscular valves in some insects, lead to the internal respiratory system, a densely networked array of tubes called tracheae.

Answer 3

Answer:

Tracheae

Explanation:

Air enters the respiratory systems of insects through a series of external openings called spiracles. These external openings, which act as muscular valves in some insects, lead to the internal respiratory system, a densely networked array of tubes called tracheae.