Which finding is the best evidence that genetics plays an important role in determining intelligence?

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

This connective tissue consists of large round densely packed cells with the nucleus pushed to one side.