1. Body Organization (HB Chapter 1) Lesson 1

2. Directs the cell’s activities and holds information that controls a cell’s function. nucleus

3. Made of clear, jellylike substance that contains many cell structures. cytoplasm

4. Covers the surface of your body, inside and out. epithelial tissue

5. Carries electrical messages back and forth between the brain and other parts of the body. nervous tissue

6. Group of organs that work together carrying out major functions. organ system

7. Group of similar cells that perform the same function. tissue

8. Basic unit of structure and function in a living thing. cell

9. A structure that is made up of different kinds of tissue. organ

10. Provides support for your body and connects all its parts. connective tissue

11. Forms the outside border of a cell. cell membrane

12. Body tissue that contracts, or shortens, making body parts move. muscle tissue