Year 13 Definitions Recap

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Across
  1. 3. The length of daylight in a 24 hour period
  2. 5. Plant hormone involved in cell elongation and growth
  3. 8. The rate of movement of an organism is dependant on the stimulus intensity
  4. 9. Movements or responses of an organism that are genetically programmed
  5. 10. A directional movement response of an animal to light
  6. 11. The rate of turning of an organism is proportional to the stimulus intensity
  7. 12. Directional growth responses of a plant to an external stimulus
  8. 13. An environmental sign or trigger that may initiate migration in animals
Down
  1. 1. A directional growth response of a plant to light direction
  2. 2. The long distance movement of animals from one region to another in response to environmental changes
  3. 4. Non directional movements to an external stimulus
  4. 6. Non directional plant responses to external stimuli
  5. 7. A plant growth response to touch
  6. 12. A directional response of an animal to an external stimulus