Across
- 5. The process in which cells become different types of cells
- 8. system A group of organs that work together
- 9. muscle Body system that include the bones as well as other structures that connect and protect the bones
Down
- 1. A fluid-filled interval cavity surrounded by muscle
- 2. Strong body tissue that an contract in an orderly way
- 3. Where two or more bones meet
- 4. A hard outer covering that protects the animal's body
- 6. The tissue that connect bones to other bones
- 7. A group of similar types of cells that work together to carry out specific tasks