Question

Why is double blood circulation necessary?

Answer 1

Answer:

During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.

Answer 2

Necessary 0f Double Circulation.

1. To separate oxygenated & de-oxygenated bloods.
2. To makes circulatory system is more efficient
3. To helps in maintaining constant body temperature.