Unit 3 Vocabulary

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Across
  1. 1. Stimulus a change within the organism
  2. 4. body's ability to keep the internal balance of the body stable
  3. 5. a response within a system
  4. 9. below-ground part of a plant
  5. 11. turning of an organism in response to an external stimulus
  6. 12. balanced; unchanging
  7. 14. growth that happens in organisms in response to gravity
  8. 15. tissue in plants that transports nutrients through the plant
  9. 16. a push or pull that can change the position of an object
  10. 17. growth in response to light, a stem bending toward a light source
Down
  1. 2. a change in the environment outside the organism
  2. 3. a thing or event that causes a reaction
  3. 6. vascular tissue in plants that transports fluid throughout the plant
  4. 7. pressure exerted by water inside the cell on the cell wall
  5. 8. a change in the position of an object
  6. 10. above-ground part of a plant
  7. 13. process of moving water through plants