Is anyone here to talk with me​

The mental health technician was asked by the psychiatric nurse to monitor a biplor patient she took a phone call from the psychiatric. the patient began running down the hall and attempted to climb up to the window stating that she has magical powers and must get out to save her people. the mental health technician knows that this behavior can be recognized as

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.

Why do you need two different circuits of blood vessels in your body?