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Platelets

Platelets: Platelets are the cells that circulate within our blood and bind together when they recognize damaged blood vessels. Platelets change their shape: Platelets, the smallest of our blood cells, can only be seen under a microscope. They look like...
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Blood types

BLOOD TYPES: Blood types: Blood is the fluid tissue, red in colour while flowing in the blood vessels. It is made to flow by the pumping action of the heart. Normal adult human will contain about 5 litres of blood....
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