Adolescents whose parents approve of underage drinking and see it as a rite of passage are less likely to drink.

Name the part of the the brain labeled "e".

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.

Which of the claims below does this model support? select all the claims that are supported