The brains of college-age marijuana users and non-users are the same. True or false

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

Antibiotics are given when an std is caused by a virus. true or false

Which is the link between heredity and tobacco addiction