Plants and their environment

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Across
  1. 2. Produced in tips of roots and shoots and promote growth by rapid elongation of cells, especially between stem and nodes. Also breaks dormancy of seeds and buds
  2. 4. length of day a plant needs more or less of in order to flower
  3. 9. layer of cells where leaves and fruit will fall from tree
  4. 10. Absorbs far-red light and is the biologically active form
  5. 11. regulation of activity by the length of daylight
  6. 13. plants that need long nights before they are able to flower
  7. 14. rapid reversible movements made in response to a change in stimulus. Not directed by stimulus. Not towards or away.
Down
  1. 1. plants that need short nights before they are able to flower
  2. 3. produced in tips of roots and promotes cell division, and growth in young fruit, slows aging of tissues
  3. 5. plants that flower independently of length of photoperiod
  4. 6. produced in tips of roots and shoots to promote elongation and differentiation of cells
  5. 7. occurs when a plant species is able to produce and release a chemical that prevents or inhibits the growth of the other plant species in the area around it.
  6. 8. growth responses made to stimuli with the response being directed by the stimulus. Can be positive and negative
  7. 12. Absorbs red light and is the inactive form
  8. 15. promotes formation of abscission zone
  9. 16. produced and accumulates in aging fruit to promote ripening