<span>True. Hunger just like any other emotion in the
body is a chemical reaction that occurs within the brain. This signals the body that it<span> is
in need of nutrients essential for many organ system functions. There are many
chemical processes within the body that need essential nutrients (eg.
carbohydrates, fats) to perform efficiently. Without food, the body will be
weak and there will be complications within the internal organs. Hunger is a
natural behavior of all living organisms and is essential for survival and
overall a major cause of evolution.</span></span>
They are most mainly consists of "Keratin"
So, option B is your answer.
Hope this helps!
That is true it was for a virus
The stress? Bad eating habits due to lack of money and time? There could be lots of reasons but that's what came to mind first.
