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Give three functions of blood.

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Give three functions of blood.

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Functions of blood:

(i) Blood transports nutrients, hormones and vitamins to the tissues and transports excretory products from the tissues to the liver and kidney.

(ii) The red blood corpuscles (RBCs) carry oxygen to the tissues for the oxidation of food stuff.

(iii) The white blood cells (WBCs) fight disease either by engulfing and destroying foreign bodies or by producing antitoxins and antibodies that neutralise the harmful effects of germs.

(iv) Blood platelets disintegrate at the site of injury and help in the clotting of blood.

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