Question

Question of the day:
1) crocodiles are 4 chambered but we have heard crocodiles remain submerged for hours without breathing। So, how can this be possible for এ 4 chambered animal?

2) Does increased breathing always means increased in heart beat?

3) What is the duration for i) Total Auricular diastole ii) Total ventricular diastole

Answer 1

Explanation:

1)crocodile spend a long time of his life in water so he is able to stay in water for a long time his for chamered heart reduces heart beat and save energy and save oxygen

2)Increase in breathing also increase the heart rate