@ChildfreeNihil Natural selection is the answer for your first question as well. Not just organisms. Chemical compounds also are subject to natural selection. Natural selection is the simple concept of survival of fittest
@ChildfreeNihil Will to live originates from natural selection. It must actually be called will to survive. Those organisms which had the most desired to survive survived and their genes got selected and passed on.
@ChildfreeNihil Yeah. As per information available online maybe within next century but I don't think anyone will release that kind of information even if it's available now.