Answer:
Changes in the Mc1r gene sequence are not responsible for the colour difference in the mice sampled from New Mexico, however, leading the researchers to conclude that the almost identical dark coat colours developed multiple times in rock pocket mice, an example of convergent evolution.
The cities, especially the largest ones have almost always been located along the banks of a river, usually a larger one. ... In the past, a major reason was the fertile soil, as the larger population needed more food, and the fertile deposits by the rivers enable high scale production of food. ( cite: google )
The definition of a Hero is actually more determined by personal and cultural factors B.
It would be hard to say that what a hero is is something that is understood universally given the fact that we have such a diversity in cultures. People often don't consider that what might be considered a heroic act in one culture, doesn't necessarily count as a heroic act in another culture.
D. combined parenting leads to faster reproduction
