Which structures produce a fluid to protect the body in the first line of defense? Select four options. A. hair
B. stomach
C. mouth
D. eyes
E. skin

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

What organ systems are working to you cool down after a workout?

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil