How Long Should You Keep Receipts & Bills? Ann Deiterich has been a writer since 1984 in business-to-business communications, specializing in TQM, business/financial topics, office management and production efficiency. As an environmental proponent, nature and science are her areas of interest.
A: Many Muslim men choose to keep beards, following the practice of the Prophet Muhammad. While there is nothing specifically written about facial hair in the Quran, Muslims are instructed to follow the teachings of the Prophet Muhammad (Surah Noor, 24th chapter, and 33:21).
There is a strong genetic component of variation among human males in patterns of facial hair growth and ultimately this is what allows evolution. evolutionary causes I'm guessing you really mean what is the adaptive significance of beard growth, i.e. why do men grow beards when women don't.