I think you forgot to give the options related to the question. So it becomes a bit hard to answer the question perfectly, still i would do my best and hope that it comes to your help. Prior to the ideas presented by Charles Darwin concerning evolution, several alternating theories had been developed and they included all but the DNA differences within a species lead to some individuals being better able to survive. This theory was developed after Darwin came up with his theory..
Natural selection would start to occur. Water levels will slowly evaporate and plant life in the local pond will decrease, which will make finding food much harder for the organisms within the pond.
Hey! :)
<span>Your ovaries make progesterone after ovulation. The most important role of progesterone is to get your uterus ready so that it can receive, implant, and support a fertilized egg during pregnancy. Progesterone levels are usually low during the first stage (follicular stage) of your menstrual cycle.
Hope this helps! :)</span>