Fact 1: Sexual reproduction increases genetic diversity.

Fact 2: Evolution requires genetic diversity.

Given the two facts above, answer the question "What tool can enable evolution?" with the following options: 
- By coral exoskeletons
 - genetic bottle necks
 - animals with backbones
 - extinction
 - A computer
 - Deoxyribonucleicacid
 - sexual reproduction
 - theory of evolution


 

       sexual reproduction  