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?

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

Does indrect sunlight does not pose any danger to the skin

Viral infections in plants ) can be controlled with antibioticsb) can spread within a plant via plasmodesmata c) have little effect on plant growthd) are not spread by animals