The umbilical cord blood is rich in stem cells, these cells have the ability to turn into any type of cell in the body. Therefore it is useful in treating those illnesses.
C.) <span>The inability of male to attain or maintain an erection for sexual intercourse is known as "Impotence"
Hope this helps!</span>
Answer:
Physical contact
Explanation:
Mostly through phsyical contact. Hugging, shaking hands, kissing, etc..
Touching raw foods and then touching objects without washing your hand. Then someone comes along and touches that door knob and touches their face
An allergist is a physician who specializes in the diagnosis and treatment of asthma and other allergic diseases. The allergist is specially trained to identify the factors that trigger asthma or allergies. Allergists help people treat or prevent their allergy problems.
source: When To See Allergist - American College of Allergy, Asthma, and ...
https://acaai.org/allergies/treatment/when-to-see-allergist
The answer is Social Gerontoloogy