Which substance starts clotting in humans after a wound, Biology

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When a wound occurs in humans, platelets in the blood activate a substance that starts clotting process. The substance which starts clotting is:

a) Adenosine (pron: ah-den-ah-seen)

b) Thrombin

c) Lecithin (pron: less-ah-thin)

d) Histamine

ANSWER: B - Thrombin

 


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