Try wikipedia: Red blood cells carry oxygen. White cells fight infection. Some white cells have memories so you don't keep getting measles for instance. Some white cells make pus to fight acute infection. There are also tiny things called platelets that clot the blood to stop bleeding.
Answered 4/25/2016
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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