Old blood: Fresh blood is usually red and the fresher it is the brighter red it is. As blood begins to break down (a soon as a few hours) the blood begins to darken. Brown and eventually to thick, sticky, and black.
Answered 9/2/2017
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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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