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Gertrude was bitten by a spider and the bite is about to swell up. What is the first

thing that will happen as her immune system reacts?
Antihistamines will be produced.
Blood flow will increase in the area.
Leukocytes will migrate to the area.
Exudate will be produced.

User Huiwei
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1 Answer

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Answer: Blood flow will increase in the area.

User Acorn
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