Final answer:
In addition to intentional artificial selection, humans unknowingly cause artificial selection in certain instances. Examples include the unintentional selection of antibiotic-resistant bacteria and the unintentional selection of invasive species.
Step-by-step explanation:
Artificial selection is the process where humans intentionally select and breed certain organisms for desirable traits. However, there are also instances where artificial selection occurs without people even realizing it. One example is the unintentional selection of antibiotic-resistant bacteria. Overuse and misuse of antibiotics in medicine and agriculture have inadvertently created an environment where only the resistant bacteria survive, leading to the evolution of stronger strains. Another example is the unintentional selection of invasive species. When humans introduce non-native species to new environments, these species may outcompete native species and become dominant through natural selection.
Learn more about Unintentional artificial selection