Question

The respiratory system of porpoises, marine mammals, begins with a blow hole rather than a pharynx, as found in humans.

Which describes the air flow, in order, once it passes this entryway until gas is exchanged with the blood?

A.
bronchioles, alveoli, trachea, diaphragm

B.
bronchi, trachea, alveoli, filaments

C.
trachea, bronchi, bronchioles, alveoli

D.
alveoli, spiracles, bronchi, trachea

Answer 1

I think its d