Question

list four functions of the human heart.why is double circulation necessary in the human body​

Answer 1

functions of human heart are as follows:

1.The human heart is an organ that pumps blood and distributes it throughout the body via the circulatory system.

2. it transports and supplies oxygen and nutrients to the tissues throughout the body.

3. it removes carbon dioxide

4.it also removes other wastes by transporting it to excretory system.

double circulation is necessary in the human body as

1. it helps to keep oxygenated and deoxygenated blood from mixing.

2.such separation allows a highly efficient supply of oxygen to the body.

3.it is useful in animals who have high energy needs and who constantly use energy to maintain their body temperature.

Answer 2

Answer:

double circulation is necessary in the human body as

1. it prevents oxygenated and deoxygenated blood from mixing.

2.such separation allows a efficient supply of oxygen to the body.

3.it is useful in humans who constantly use energy to maintain their body temperature.

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