what do saliva, tears, and nasal mucus have in common?\nall can be classified as biological barriers.\nall…
what do saliva, tears, and nasal mucus have in common?\nall can be classified as biological barriers.\nall contain langerhans cells.\nall can destroy bacterial cell walls.\nall are part of the complement system.
Answer
Brief Explanations:
Saliva, tears, and nasal mucus are all part of the body's first - line defense mechanisms and can be classified as biological barriers. Langerhans cells are mainly in the skin and mucosa but not a common feature of all three. Not all of them can destroy bacterial cell walls (e.g., nasal mucus doesn't primarily do this). They are not part of the complement system which is a more complex set of proteins in the blood.
Answer:
All can be classified as biological barriers.