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8. What are the components of blood?

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There are four components of blood:

(i) Platelets: It helps in the formation of blood clots thus preventing the excessive bleeding from the wounds.

(ii) Plasma: They are present in the blood cells and also contains dissolved nutrients.

(iii) Red blood cells (RBC): They are the most abundant cells in the blood. RBC contains a red pigment called hemoglobin which carries oxygen and transports it to all the parts of the body.

(iv) White blood cells (WBC): They help the body to fight against the diseases by changing their shapes. Thus, they constitute the immune system of the body.

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Divya Prakash Singh

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