Across
- 2. Produces gametes
- 3. An automatic response of the nervous system
- 4. Used to absorb nutrients from food
- 7. Sends electrical signals to and from the brain
- 8. A type of nerve cell found in the nervous system
- 9. Oxygen in, Carbon Dioxide out
- 11. Uses white blood cells to protect against disease
- 14. Transportation for molecules and cells
- 15. Provides "inside and outside" movement
- 16. Tissue made from protective skin cells
Down
- 1. Tissue made of cells used to support the body
- 5. Produces hormones that determine "maleness" and "femaleness"
- 6. First line of protection from pathogens
- 8. Tissue made of cells that transmit electrical signals
- 10. Tissue made of contracting cells
- 12. Acts as a filter to protect against disease
- 13. Produces blood cells
- 16. Removes water waste from the body