MULTIPLE CHOICE 1. The lowest level of structural organization in the human body is the level. a. molecular b. cellular c. chemical d. atomic ANS: C REF: 3 2. What type of tissue binds together and supports the various structures of the body? a. Epithelial b. Connective c. Muscular d. Nervous ANS: B REF: 3 3. What type of tissue covers internal and external surfaces of the body? a. Muscular b. Connective c. Nervous d. Epithelial , ANS: D REF: 3 4. How many individual body systems comprise the human body? a. 22 b. 13 c. 10 d. 8 ANS: C REF: 3 5. How many separate bones are found in the adult human body? a. 181 b. 215