[Q]: Two medical school students named Dan and Bob learned about the human immune system. Dan studied more about the subject, and became very interested to pursue it more in the future. Which student learned that the infected skin area may become painful?
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[A]: Dan
input: Please answer the following: Bobby and Will were two friends attending a genetics course. Bobby studied a small, isolated group of mammals. Will studied a large, healthy population of the same species. Which person didn't observe a reduction in fitness of the species?
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output: Will
Please answer this: Two farmers had neighboring parcels of land. Bob had a nice parcel of old growth forest, while the other farmer, named Bill , had a similar sized parcel covered in grasslands. Which farmer observed a greater buildup of calcium in the soil?
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Answer: Bill
Problem: Mark and his brother Jeffrey have to leave their cars outside because their parents' cars take up the entire garage. Mark's car has a very dark interior, while Jeffrey's car has a lighter colored interior. It is mid-afternoon on a sunny day in July, and Mark and Jeffrey are deciding which car they want to take to go to the movies. Which car, Mark's or Jeffrey's, will absorb less sunlight?

A: Jeffrey's
Problem: Given the question: Mike is studying the population growth rate of countries around the world. He noticed that countries like Japan and Russia are having a demographic shift. They have a growing population of late adulthood. He recorded the late adulthood population as population A. On the other hand, many developing countries have growing population of younger people. He recorded younger population as population B. Which population would see stronger immune system, population A or population B?
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The answer is:
population B
Problem: There were two villages: Berg village situated at 3000 ft, at the base of the mountain, and Steep village, situated at 8500 feet. People visiting the area always stop in Berg village and feel great, but they feel bad and winded once they get to Steep village. Which village has more people getting sick from altitude sickness?

A:
Steep