It allows the individual in a populations to survive and have offspring with the desire trait needed to live while those without will die out
100%, they should all have ff genes :3
The nursing action that is best in achieving the goal is changing disposable diapers using a duration of 2 to 3 hours. This is by use of clean diapers. The changing of the diapers depend with how often he or she wets the diapers.when you change the diapers ensure that your hand is always clean.