Final answer:
Artificial selection, or selective breeding, is the act of humans choosing individuals with desired traits to breed together. It has been used for thousands of years to modify plants and animals.
Step-by-step explanation:
Artificial selection, also known as selective breeding, describes the act of humans selecting individuals who possess desired traits to breed with one another. This process has been used to modify plants and animals for thousands of years. For example, farmers selectively breed cows that produce the best milk, and dog breeders artificially select traits to create specific breeds.