Answer:
Keratin serves important structural and protective functions, particularly in the epithelium. Some keratins have also been found to regulate key cellular activities, such as cell growth and protein synthesis
Based on the given situation above, when there is this strong feeling that you want to choose one over the other, which is, for example choosing which colleges to attend, the part of the brain that is at work is the emotional brain.
Silicates is the answer to this.
<span>Desirable traits become more common in populations because of the process of natural selection.</span>
