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Question

Why is blood needed by all the parts of a body?

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Solution

Blood is needed by all parts of the body as it is an important part of the transport system of our body. It performs the following important functions:

(i) It transports O2 from the lungs to all the body cells.

(ii) It carries CO2, a waste product back to the lungs so that it can be exhaled easily.

(iii) It transmits heat, thus regulating the body temperature.

(iv) It also fights off diseases and infections.


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