A. make a list of doctors, check on their skills, make an appointment
Answer:
Clinical depression ranges in seriousness from mild, temporary episodes of sadness to severe, persistent depression.
Depression can last up to two weeks and affects a person’s ability to work, carry out usual daily activities and have satisfying personal relationships.
Explanation:
Answer:
b. It keeps alveoli from collapsing with breaths.
Explanation:
Surfactants are highly surface active agents which are formed from a protein and lipid complex. It comprises of a hydrophobic and hydrophilic portion and its sole purpose is to control the tension at the air-liquid interface and thereby lower the surface tension. Surfactants are produced by the type II aveolar pneumocytes in the lungs.
Surfactants are needed in order to aid breathing and prevent straining oneself, it also prevents the lungs from collapsing during breathing, a term known as atelectasis.
