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A 25 year old carpenter punctures his thumb with a rusty nail. Within 24 hours, the wound has become a 1-cm red sore that drains a thick, yellow fluid. Which of the following biologic processes accounts for tissue swelling at the site of injury in this patient? smooth muscle cell contraction Neutophil chemtaxis Platelet aggregation Complement fixation Endothelial cell separation.

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Category:- Biology
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