Question

do all Insects have tracheal system​

Answer 1

Answer:

no not at all.

all insects does not have tracheal system

Answer 2

Answer:

All insects are aerobic organisms — they must obtain oxygen (O2) from their environment in order to survive. It is a complex network of tubes (called a tracheal system) that delivers oxygen-containing air to every cell of the body. ...

Explanation:

thanks sis. what happened to santa? she didn't came.