The spinal cord extends from the of the brain.

Which disease is caused by a buildup of plaque in blood ves

What causes fermentation a. antibodies b. antigens c. microorganisms d. antibiotics

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.