What do saliva, tears, and nasal mucus have in common?
all can be classified as biologi...
![Health](/tpl/images/cats/health.png)
Health, 03.02.2020 04:50, allenlitterell
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.
![answer](/tpl/images/cats/otvet.png)
Answers: 1
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