Question

Many animals with double circulatory systems have higher metabolic rates than those with single circulatory systems. Suggest an explanation for this.

Answer 1

Answer:

Animals with double circulatory system have higher metabolic rates bcz due to double circulatory system there is no chance of mixing of O2 with CO2 . and only oxygen will reach to the every parts of the body . as double circulatory system is in only those who have 4 chambered heart . so there is partition .

Answer 2

Answer:

Double circulation of blood ensures that oxygenated and deoxygenated blood do not mix. This increases the oxygen level provided to muscles, thereby making it more efficient and energy providing as compared to single circulation where mixing of oxygenated and deoxygenated blood is tolerated.[ Please mark as brainliest :) ]