Robyn has been working out five days a week for the past six months. She is now planning to take a month-long break from the gym. Which training principle should Robyn consider before taking this break?

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.

When lifting heavy loads off the ground, the majority of the weight should be lifted by which of the following? a. arms b. legs c. back d. stomach

What region is located between the shoulder blades