Unit 3 Extra Credit

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Across
  1. 2. a change in the environment outside of the organism
  2. 4. below-ground part of a plant (organ system)
  3. 5. When the vacuole of the cell is full and puts pressure on the cell wall allowing the plant to stand up straight
  4. 9. plant's response to gravity, such as the downward growth of plant roots
  5. 12. pressure exerted by water inside the cell on the cell wall
  6. 14. When the vacuole of the cell is empty and there is no pressure on the cell wall
Down
  1. 1. a change within the organism
  2. 3. plant's response to light, such as a stem bending toward a light source
  3. 6. how an organism reacts to a stimulus
  4. 7. a thing or event that causes a response or reaction
  5. 8. Cell organelle that surrounds and protects plant cells
  6. 10. Cell organelle that stores water, waste, and nutrients and gives support to plant cells
  7. 11. What a plant does with low turgor pressure
  8. 13. a push or pull
  9. 15. A plant's response to a stimulus