Question

the air tube of an insects @re useful for the
a) liquid
b) solid
c)gasses
d) all of the above
e) none
f) no exchange ​

Answer 1

Answer:

In insects, the tracheal tubes primarily deliver oxygen directly into the insects' tissues. The spiracles can be opened and closed in an efficient manner to reduce water loss. This is done by contracting closer muscles surrounding the spiracle.

Explanation:

so answer is none

Answer 2

solid.......... b no..