Question

Which statement about respiratory adaptation is true?

a. desiccation of the respiratory surface is more likely to occur in gills than in lungs

b. fish only ventilate their gills by swimming almost constantly with their mouths open

c. all animals require use internal surfaces for gas ventilation

d. perfused gill arches are found only in invertebrates

e. minimizing the path distance for gas diffusion to occur is an important evolutionary step

Answer 1

Ans:-true statement regarding respiratory adaptation :-

b) fish only ventilate their gills by swimming almost constantly with their mouths open

falsification of other statement :-

Dessication of the respiratory surface is more likely to occur in lungs than in a gills.

In order to increase gas exchange the respiratory surface and distance from intake of air is increased.

Gills perfusion also found in fish(vertibrate).

Some animal use their outer surface for gas diffusion.