Question: A pharmaceutical company is trying to find the cure for allergy. To that end, they conducted an experiment with two groups of subjects, group A and group B. They exposed the participants in group A to allergen, but they didn't expose the participants in group B to any allergen. The symptoms of these two groups would help them find the cure for allergy. Which group might not have been exposed to dust mites, mold, or animal dander, group A or group B?
Answer: group B

Question: Adam was playing tag football when one of his friends tagged him a bit too hard and caused him to tumble and fall. He noticed when he fell, he got a pretty bad cut in his knee. He decided to ignore the injury for now and keep playing. Later when he got home he realized the area of the cut was warm and swollen Given Adam's injury is mostly healed and inflammation has subsided will, the blood vessels around the injury have expanded or contracted?
Answer: contracted

Question: Hydrologists studied two samples of rain water. Jim studied an acid rain sample from a nearby city, and Dan studied a sample of water from another town. Which hydrologist didn't learn that acid rain falls in freshwater habitats?
Answer:
Dan