Insect show consideration powers of water conservation. This is due to the fact that
-
A.
The chitinous cuticle is impregnated with tanned protein -
B.
Nitrogenous waste is eliminated as urea -
C.
Chitin is impermeable to water -
D.
The malpighian tubules are impermeable to water -
E.
The curticle is covered with wax