Across
- 3. a group of similar cells that perform a common function
- 4. hormone released in conditions of stress
- 6. a bacterium, virus, or other disease causing microorganism
- 7. the outermost layer of the skin
- 9. to break down food and obtain energy
- 10. system responsible for producing offspring.
Down
- 1. system responsible for removing waste from the body
- 2. system responsible for movement and flexibility
- 5. system responsible for taking in oxygen and removing carbon dioxide
- 8. system that senses and responds to information. Consists of the brain, spinal cords, etc.