Stimulus, Response & Homeostasis

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Across
  1. 3. The force within a plant cell that pushes out against the cell wall
  2. 4. The response of a plant as it grows in response to light
  3. 7. The response of the body when trying to fight off infection
  4. 9. A response that an organism decides to do, it doesn't happen automatically
  5. 11. How an organism reacts to a stimulus/a change in behavior
  6. 13. Stimulus: not enough water in a plant. What is the response?
  7. 16. A stimulus that comes from outside an organism
  8. 18. The body system that maintains homeostasis by removing toxins from the blood
Down
  1. 1. The body system that maintains homeostasis by removing carbon dioxide from the lungs
  2. 2. A response that happens automatically/without conscious control
  3. 5. Your body's involuntary response to the stimulus of being too cold
  4. 6. The maintenance of a stable internal environment in an organism
  5. 8. An animal might _______ if it eats food contaminated with bacteria, viruses or parasites
  6. 10. Your body's involuntary response to the stimulus of being too hot
  7. 12. Plural of stimulus
  8. 14. A stimulus that comes from inside an organism
  9. 15. The response of a plant as it grows in response to gravity
  10. 17. A change in an organism's environment that causes it to react