Mucus, saliva, tears, sweat, urine, feces, pus, blood, semen, and earwax are examples of mechanical barriers.
Mucosidad, saliva, lágrimas, sudor, orina, heces, pus, sangre, semen y cerumen son ejemplos de barreras mecánicas.
| Front | What are examples of mechanical barriers? |
|---|---|
| Back | mucous, saliva, tears, sweat, urine, feces, pus, blood, semen, earwax |
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