10 points! pls

which national barrier works against pathogens?
nasal passage
feet
tears
mouth

Which one of these patients requires oral care less frequently than every two hours? a two-year-old who is tube fed. an 26-year-old female who is unconscious. a 64-year-old patient with high cholesterol. an elderly male patient who is vomiting. read question

If mary has stopped her resistance training for three weeks, once she continues, she should work out harder to get back in shape keep her workout the same as before her break reduce the weight during the workout session reduce the rest times between sets

Adog begins walking at a speed of 6 kilometers per hour. after 1 hour, the dog is walking at a speed of 4 kilometers per hour. which is this an example of? a. positive acceleration b. negative acceleration c. speed