And individual only needs one can you to live a healthy 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.

Amino acids are important to the body because they build carbohydrates proteins complex carbohydrates simple sugars fats

What would be good in a cpr and first aid video