In the mammalian respiratory system. exchange of gases occurs in the?
I. Stomata --> Spirogyra
II. Alveoli --> Earthworm
III. Malpighian tubule -> Mammal
IV. Contractile vacuole -> Protozoa
Which of the above structures is correctly matched with the organisms in which it is found?
The sequence of the one-way gaseous exchange mechanism in a fish is?
