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?

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asked Jul 7, 2018 163k views

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Ahmed Niri · Answer 1 · 2018-07-09T06:00:47+0000

It is the first line of defense which consists of all the chemical based protection such as skin , tears , cilia, stomach acid, mucus and urine. This is the outside defense system.

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?

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