9. Why did the Irish potato famine occur? O A. The farmers planted a variety of potatoes that were infected by a potato blight.
O B. The farmers didn't plant enough potatoes.
O C. The farmers all planted the same potato variety, which was susceptible to a potato blight.
O D. Potatoes don't have enough nutrients to be a staple crop.

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) even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true. d) the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today.