Question

. Terrestrial arthropods like insects have ________ which are openings to the external environment that allow air into the body *
1 point
a) tracheol
b) spiracles
c) lungs
d.stomata​

Answer 1

Answer:

Tracheol

Explanation:

Terrestrial forms rely on diffusion through tiny tubes called trachea. Trachea are cuticle-lined air ducts that branch throughout the body, and open in tiny holes called spiracles, located along the abdomen.