Humans have the ability to change the characteristics, or traits, of organisms over time. What is this process called?

I think the answer is Selective breeding and Artificial selection

Explanation:

Its what the document says in StemScopes

Have you ever heard that all dogs are related to wolves? For some dogs, such as huskies and German shepherds, the resemblance to wolves is quite striking. You can see how they may be related. But what about other dogs? Pugs look nothing like wolves. Neither do chihuahuas or toy poodles, yet these dogs are also related of the wolf. So how did we get from wolves to toy poodles? The answer is artificial selection. Humans change specific characteristics of organisms through selective breeding.

Hope this helps :D