Which statement about natural selection is true? Natural selection tends to increase the risk of dying from external forces. Natural selection "weeds out" alleles that cause death in early life. Natural selection has produced increasing numbers of people who choose never to have children. Natural selection has produced a high degree of infant mortality in humans, compared to other species. Natural selection operates only on people of advanced age.

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? a). in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency. b). flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. c). the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today. d). even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true.