An organism X having breathing organs A lives on land. When organism X goes under water, it cannot survive for a long time unless carrying an cylinder. On the other hand, the organism Y having breathing organs B always lives in water and if taken out of water, it dies after a short while. A third organism Z having breathing organs C and D which lives on the banks of ponds, lakes and rivers can survive on land as well as in water equally well.(a) What could organism X be ? Name the breathing organs A.(b) What could organism Y be ? Name the breathing organs B.(c) What could organism Z be ? Name the breathing organs C and D.(d) Out of X, Y and Z, which organism is (i) amphibian, (ii) aquatic, and (iii) terrestrial ?

(a) Organism X is a human being. The breathing organs A are lungs.

(b) Organism Y is a fish. The breathing organs B are gills.

(c) Organism Z is a frog. The breathing organ C is skin and D are lungs.

(d) (i) Z is an amphibian because it lives both on land and water.

(ii) Y is an aquatic organism because it lives only in water.

(iii) X is a terrestrial organism because it lives only on land.

Tutorialspoint

Updated on: 24-Mar-2023

15 Views

Kickstart Your Career

Get certified by completing the course

Get Started