Osmoregulation is a major function of kidneys and in fishes

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species

What type of cell division is used to replace old cell?

Which statement best addresses the differences in sex cell differentiation between the red-eared slider turtle and a human?