Homeostasis is maintained by which three mechanisms?
A. Vascular spasm , platelet plug , fibrin clots
B. Von Willebrand's factor, fibrin, platelets
C. Factor VIll, factor VIl, factor II Xp.
D. Fibrin, platelets, hemoglobin
Ans: A. Vascular spasm , platelet plug , fibrin clots
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