Answer:
D) to break down oxygen entering the respiratory system
Explanation:
Because the function of mucus in the nasal cavity is warm, moisturize and filter air entering
False it is not normal yet some people may still do it
I think the correct answer from the choices listed above is option A. The transition stage of birth is characterized by the initial dilation of the cervix. <span>In the transitional phase, your cervix will open from 8 to 10 cm, which is the diameter that the baby’s head needs to pass through the birth canal.</span>
