the primary respiratory organ for cockroach is trachea
Because that is where the primary gas exchange happens.
Mammals use lungs to collect oxygen from the air, fish use gills to collect oxygen from the water.
no they don't
Any animal that breathes has a respiratory organ
Ammonia is the main excretory product of a cockroach is ammonia. The excretory organ of a cockroach is called the malpighain tubes.
pores
Compared to what? It is the only respiratory organ in humans.
the type of respiratory organ mollusks have is GILLS.
lungs is respiratory organ of cow
Cockroach blood contains no red blood cells to transport oxygen because its respiratory system is open. This means that roach blood is pale yellow or colorless.
No, it's in the ear.
The lungs