Answer:
Strong selection for change is acting on this gene.
Explanation:
Endorphins reducing stress levels
Answer:
by moistening, heating, and purifying air as it proceeds down the airways
Explanation:
The upper respiratory system support good health by moistening, heating, and purifying air as it proceeds down the airways.
Answer:
Definitely a doctor!!! Option D!
Explanation:
Well i don’t really understand but i’m guessing you have to do what it says.
