During adolescence, both boys and girls experience all the following except
a. acne.
b. growth spurts.
c. sex hormone increase.
d. broadening of shoulders.

How do healthy family relationships affect members of a community?

Does nicotine show up in a drug test when u pee in the cup

Mucous membranes.. a. cover or line external surface of body. b. line internal body surfaces that are in contact with the environment. c. produce antibodies to combat infection. d. secrete sweat, which has antibacterial enzymes.