https://www.khanacademy.org/science/grade-7-science-tx/xe25057200abc6bd6:reproduction-and-selection 2026-07-03T03:00:41.306580382Z Reproduction and selection Compare sexual and asexual reproduction and how each affects trait variation among offspring and populations over time. Then, examine how traits that help organisms survive and reproduce tend to become more common across generations through natural selection. Finally, discover how humans have applied these same principles to develop crops, livestock, and other domesticated species through artificial selection. unit