asked 164k views
3 votes
Larry is taking a walk in the park. The pollen in the air makes him sneeze constantly. What line of defense is his immune system exhibiting?

asked
User Ptay
by
8.0k points

2 Answers

3 votes
First line of defense 
answered
User MichaelV
by
7.9k points
3 votes
First line of defense
answered
User Keen Sage
by
8.0k points
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