What is tuck position

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.

Someone with my pe hw i need it for tomorrow

Which of the following would be of greatest concern to a speaker in presenting to children? choose only two. age expectation ethnicity knowledge gender