Question

if we compare the respiratory efficiency of humans , birds & fishes , which among will have the highest & lowest & why ?

no spams ​

Answer 1

Explanation:

if we compare the respiratory efficiency of humans , birds & fishes , humans among will have highest respiratory efficiency . because of birds are flying in sky within the higher altitudes when the quantity of oxygen is very less . fishes have using gills to complete the process of respiration ...

Answer 2

Answer:

I guess the efficiency of birds is better than that of humans because birds stay near trees where there is a plenty of oxygen whereas humans stay in polluted environment where we get more carbon monoxide sulphur dioxide and other pollutants to breathe

btw birds don't smoke but humans do xD

that's the reason y birds have a efficient respiratory track