Which effect is caused by testosterone? a)an undescended testis b)mumps after puberty c)physical changes at puberty d)infertility later in life

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.

Lifestyle diseases are caused by a combination of

Grain products are a good source of .