Question

Q2 The respiratory organs of the following an mals are
(a) Fish
b) Human being​

Answer 1

Answer:

a. gills

b.lungs

hope it helps...

Answer 2

Answer:please mark me as the brainliest

here is your answer.....

Explanation:

Almost four billion years ago, living beings that inhabi- ted the earth ... fish or  by diffusion through the lungs, respiratory organs present in ...