Describe how the triassic period was a transitional time period during the mesozoic era. explain why the boundary between the triassic and jurassic periods is similar to the boundary between the permian and triassic periods.

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