Is depression a social issue?
(This is just to hear about individual thoughts.)

Which of the following is a true statement? a. the male sex hormone is called estrogen. b. the female sex hormone is called testosterone. c. both sexes manufacture some amount of the sex hormone associated with the opposite sex. d. only males secrete testosterone and only females secrete estrogen

Scientists who study the anatomy of the systems in the human body focus their studies on

Which of the following statements is true?