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
the type of respiratory organ mollusks have is GILLS.
Compared to what? It is the only respiratory organ in humans.
Ammonia is the main excretory product of a cockroach is ammonia. The excretory organ of a cockroach is called the malpighain tubes.
pores
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.
This is the best explanation I could gather. Hopefully, this helped you. The respiratory system is responsible for taking in oxygen and eliminating waste gases like carbon dioxide. Because dogs and cats do not sweat through the skin, the respiratory system also plays an important role in the regulation of temperature.
No, it's in the ear.