Fact 1: Mutations are essential for evolution to occur.

Fact 2: Mutations Mutations are random changes in the genetic information of an organism.

Given the two facts above, answer the question "Changes in the genetic information of an organism are what for evolution to occur?" with the following options: 
- impossible
 - Plants growth
 - positive
 - paranoid
 - essential
 - disgusted
 - dangerous
 - allow growth


 

     essential    