Question

What is double circulation?​

Answer 1

Answer:

During a single cycle, blood goes twice in the heart which is known as double circulation.It is necessary for higher vertebrates 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

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Here is your answer -

Double circulation is a process during which blood passes twice through the heart during one complete cycle. This type of circulation is found in amphibians, reptiles, birds, and mammals. However, it is more prominent in birds and mammals as in them the heart is completely divided into four chambers – the right atrium, the right ventricle, the left atrium, and the left ventricle.

The movement of blood in an organism is divided into two parts:

• Systemic circulation
• Pulmonary circulation