Question: A biologist was in Australia making observations about the local species when he identified two distinct groups of butterflies. He found that one group of butterflies, group A, blended in with the dark oak trees that were common in the area. Butterflies in the other group, group B, however did not blend in as well and could easily be spotted by predators whenever they landed on the oak trees. Will the traits belonging to the group A butterflies become more common or less common over time?
Answer: more common

Question: Sweden and Norway had taken two different approaches in dealing with their electric power suppliers. Sweden has broken up large companies into many smaller companies. But Norway kept the handful of large electric power suppliers they had intact, and didn't take initiative to increase their numbers. In which country companies would find transmission and distribution easier?
Answer: Norway

Question: Doctor Jones studied two teams of workers. Team one had healthy people with normal red blood cell levels, but team two had people with sickle-cell anemia. the differences in health parameters were amazing and obvious. Which team had people getting less oxygen to their cells?
Answer:
team two