Question

4. Give reasons for the following: (b) A fish does not survive outside water.गिफ्ट ​

Answer 1

Answer:

It is the structure of gills that helps fish respire inside water. It cannot breathe through the atmospheric oxygen and hence the fishes die when taken out of the water.

Answer 2

Answer:

Though some fish can breathe on land taking oxygen from air, most of the fish, when taken out of water, suffocate and die. This is because gill arches of fish collapse, when taken out of water, leaving the blood vessels no longer exposed to oxygen in air.