1. Natural and Artificial Selection: Evolution
Geographical/Biological factors must separate the population preventing them to interbreed forcing them to create a new interbreeding population; these factors can be the formation of new streams, mountains, lakes, rivers etc Since these two populations can no longer interbreed there is a barrier in the gene flow, as different selective pressure and mutations start to occur and interbreeding continues, these two populations start to evolve in different directions and after generations these two population that were once the same species become 2 different species. ...
- Word Count: 1240
- Approx Pages: 5
- Grade Level: Undergraduate