Fact 1: Sexual reproduction increases genetic diversity.

Fact 2: Mammals are dioecious with sexual reproduction and internal fertilization.

Given the two facts above, answer the question "What increases genetic diversity?" with the following options: 
- By coral exoskeletons
 - Something that waters do
 - Something that planets do
 - fertilization
 - Something that rocks do
 - deoxyribonucleic acid
 - Males and females
 - Somethign that mammals do.


 

        Somethign that mammals do. 