What do saliva, tears, and nasal mucus have in common?
All can be classified as biological barriers.
All contain Langerhans cells.
All can destroy bacterial cell walls.
All are part of the complement system.

@AlexandervonHumboldt2 @Tootles143 @Whitemonsterbunny17

Question

What do saliva, tears, and nasal mucus have in common?
All can be classified as biological barriers.
All contain Langerhans cells.
All can destroy bacterial cell walls.
All are part of the complement system.



@AlexandervonHumboldt2 @Tootles143 @Whitemonsterbunny17

alexandervonhumboldt2 · Answer

Saliva is a watery substance located in the mouths of animals,

whitemonsterbunny17 · Answer

They all protect your body from harmful bacteria.

alexandervonhumboldt2 · Answer

is the secretion of tears, which often serves to clean and lubricate the eyes in response to an irritation of the eyes.

alexandervonhumboldt2 · Answer

hmm i would say A but no sure

anonymous · Answer

ohh so it would have to be between A or C ?? I'm not good at biology as you guys can tell lol

anonymous · Answer

I think between A and D...

anonymous · Answer

I'm going with A

anonymous · Answer

I agree.. :)