بسم الله الرحمن الرحيم How did the first single celled organisms appeared on earth? It evolved somehow. How did multi cellular organisms came to be? It evolved from single celled organisms. How did various plants, trees, animals of sea and land originate? They evolved of course. How did birds originate? They evolved from dinosaurs. How did humans originate? They evolved from apes. So what does evolution mean? It means slow change in organism(s) based on environmental conditions it is subjected to, such that the organism is able to better adapt to the conditions. How does evolution work? What drives it? What is the mechanism behind it? It is unknown and studies surrounding it are not able to come to decisive conclusion. Has evolution been observed in reality? Of course not! The process takes place in very small incremental changes which accumulate over millions of years; thus there is no direct observation of evolution actually taking place. But if this is true then we ...