Barb and Ann were friends. The used to play together outside in the yard till one day Barb's parents found out that she had sickle cell anemia. They haven't played together since. Which girl had a life threatening disease?
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Answer: Barb

The doctors studied two groups of people, group one which included people with respiratory diseases caused by viruses, and group two, which had people with respiratory diseases caused by bacteria. Which group didn't include people that had the flu?
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Answer: group two

John is trying to figure out how substance passes through the cell membrane. He noticed two different cases, case A and case B. In case A active transport is involved, but in case B diffusion is involved. He needs to do further study to learn about the details of these processes. In case A, would the substance move up or down the concentration gradient than in case B?
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Answer:
up