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Question

Why is blood needed by all the parts of the body? [5 MARKS]

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Solution

Each point: 1 Mark

(i) It carries oxygen to all the parts of the body and also carries carbon dioxide back to the lungs to be expelled.
(ii) It carries digested food to various parts of the body for absorption.
(iii) It contains platelets which help in the clotting of blood.
(iv) It helps in maintaining constant body temperature.
(v) It transports hormones.
(vi) It helps in fighting the body with germs and bacteria.

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