1. Natural and Artificial Selection: Evolution
We see a good example of Adaptation in bears, if we look at the evolutionary history of bears we see that they all had a common ancestor and now looking at them we realize that they had to adapt to their environment keeping in mind that they live in different habitats. ... 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 differe...
- Word Count: 1240
- Approx Pages: 5
- Grade Level: Undergraduate