The body's first line of defense against pathogens includes a. antibodies. b. memory cells. c. t cells. d. wax in the ears.

Foods that are made fro meat , poultry, fish, or dry beans and peas ,nuts ,seeds , and eggs are considered part of which food group

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.

Calculate alex’s tee. alex has a bmr of 1,300 calories and he exercises lightly. his tee is .