Question

name the structure through which tracheal system communicates with outside.

Answer 1

Insects take in Oxygen and expel Carbon Dioxide using a series of internal air tubes, thetracheae. These pass fine branches, the tracheoles, to all parts of the body. ... From the main trunks, tracheoles pass throughout the body. The tracheae open to the air at the paired spiracles.

Answer 2

Answer:

Hm.. I think this will help uh