Q: Mike is studying the predator prey relationship. He is specifically studying three species, species A, species B, and species C. Species A is a predator; species B is the prey; and species C is a plant species that species B lives on. Mike now needs to figure out how the predator prey relationship balance the ecosystem. If species A population decrease, would it affect the ecosystem positively or negatively?
A: negatively

Q: Over the years, the town of Euphoria has grown more successful and wealthier than anyone ever thought. As the wealth has increased and people have acquired more material possessions, their outlook on life has become more positive and it has been noted that the citizens have a lower incidence of depression. The town of Zenphora, on the other hand, has taken a downward financial turn over the past 50 years. The citizens have had to sell their worldly goods just to make ends meet and many do not have a good feeling about what their future holds. Due to financial success, has the SWB in Euphoria increased or decreased?
A: increased

Q: Two twin sisters were taken to the doctor's office by their parents. It turned out that Mary had hemophilia while Ann didn't have any blood disease. Which sister was more exposed to the risk of bleeding to death?
A: Mary

Q: Two cousins both have chronic viral infections. Tim has Kaposi's sarcoma-associated herpesvirus, while Nate has the EpsteinBarr virus. Which cousin has a lower chance of developing B lymphoproliferative disorder?
A:
Tim