Which of the following is/are a role of testosterone in males? i. pre-natal development of male genitalia ii. maintenance of sex drive iii. increase in mental development
a. ii only
b. i and ii only
c. ii and iii only
d. i, ii and iii

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.