Chapter 8, Section 4 and 5 Vocab

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Across
  1. 2. the female reproductive part of a flower
  2. 5. a plant that produces seeds that are not enclosed by a protective fruit
  3. 7. a period when an organism's growth or activity stops
  4. 8. the reproductive structure of an angiosperm
  5. 11. the ripened ovary of an angiosperm that encloses one or more seeds
  6. 14. a flowering plant that completes its life cycle in one growing season
  7. 15. a plant's response to seasonal changes in length of night and day
  8. 17. a male reproductive part of a flower
  9. 19. _______ day plant: a plant that flowers when the nights are longer than the plant's critical night length
  10. 22. _______ night length: the number of hours of darkness that determine whether or not a plant will flower
  11. 23. an angiosperm with one seed leaf
  12. 24. day ______ plant: a plant with a flowering cycle that is not sensitive to periods of light and dark
  13. 25. a structure that contains an egg cell
Down
  1. 1. a plant hormone that speeds up the rate of growth of plant cells
  2. 3. the growth response of a plant toward or away from a stimulus
  3. 4. ________ day plant: a plant that flowers when the nights are shorter than the plant's critical night length
  4. 6. the transfer of pollen from male reproductive structures to female reproductive structures in plants
  5. 9. a leaflike structure that encloses the bud of a flower
  6. 10. a flowering plant that completes its life cycle in two years
  7. 12. an angiosperm with two seed leaves
  8. 13. the reproductive structure of a gymnosperm
  9. 15. a flowering plant that lives for more than two years
  10. 16. a flower structure that encloses and protects ovules and seeds as they develop
  11. 18. a flowering plant that produces seeds enclosed in a protective structure
  12. 20. a chemical in an organism that produces a specific effect such as growth or development
  13. 21. a colorful, leaflike structure of a flower