Human immunodeficiency virus (hiv) is a virus that infects (and destroys) t cells. as a result, people who are hiv+ generally have a low number of these t cells. how would a dramatic decrease in t cells affect a person’s immune response? be specific using details from what you learned about the immune response.

Which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea. c. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. d. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated.