Which of the Following Are Functions of Mucus in the Body

question 18

Multiple Choice

Which of the following are functions of mucus in the body?
1) Lubrication
2) Improvement of gas exchange
3) Waterproofing
4) Protection from inflammation

• A)1 and 3 only
• B)1 and 4 only
• C)1,3,and 4 only
• D)1,2,3,and 4

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