20. the following are the appendicular skeleton, except? a. arms b. hips c. feet d. jaw
21. it is an organ system consisting of the skin, hair, nails, and exocrine glands.
a. integumentary system b. muscular system c. skeletal system d. skin
22. the following are the parts of the skeletal system, except?
a. biceps b. scapula c. sternum d. ulna
23. these made up the muscle cells.
a. cardiac , smooth and skin b. cardiac, smooth and skeletal c. cardiac, smooth and triceps d. none
24. this is a tissue or organ of the body characterized by the abillity to contract. a. inte gumentary system b. muscular system c. skeletal system d. skin
25. the muscular system has many muscles all over the human body. a. it has 500 muscles b. it has 550 muscle c. it has 600 muscles d. it has 650 muscles
26. it is the system of the body that protects the internal organ of the body. a. integumentary system b. muscular system c. skeletal system d. skin​