Question

why do insects have spiracles​

Answer 1

Answer:

Instead of nostrils, insects breathe through openings in the thorax and abdomen called spiracles. Insects that are diapausing or non-mobile have low metabolic rates and need to take in less oxygen. Insects exchange oxygen and carbon dioxide through spiracles (noted by circle).

Answer 2

Explanation:

$\huge{\underline{\mathrm{Question}}}$

why do insects have spiracles ?

$\huge{\underline{\mathrm{Answer}}}$

Instead of nostrils, insects breathe through openings in the thorax and abdomen called spiracles. Insects that are diapausing or non-mobile have low metabolic rates and need to take in less oxygen. Insects exchange oxygen and carbon dioxide through spiracles (noted by circle).