A7 year old child is admitted to a hospital with jaundice but released when the doctors learn that the child recently drank a lot of sunny d and carrot juice. explain what jaundice is, what caused it in this case, what other problems may jaundice indicate and why he was ultimately released.

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.