An individual's preference to mate with partners phenotypically similar to itself is:

1. Mate choice is one way mating departs from random. 2. One common form of mate choice is called assortative mating. 3. It is an individual's preference to mate with partners who are phenotypically similar to themselves. 4. Sexual dimorphism is instead a difference between the sexes. _Source: OpenStax Biology 2e (CC BY 4.0), Ch 19 'The Evolution of Populations', sections 19.1-19.3_