Chapter 22 Vocab

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Across
  1. 2. the central part of an ovule, containing the embryo sac.
  2. 7. They are gymnosperms, cone-bearing seed plants.
  3. 9. a leaf that bears sporangia.
  4. 11. the central part of an ovule, containing the embryo sac.
  5. 12. division of plants, grouped within the gymnosperms,
Down
  1. 1. a sticky flammable organic substance, insoluble in water, exuded by some trees and other plants
  2. 3. a plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo.
  3. 4. seed plants with a long fossil history that were formerly more abundant and more diverse than they are today.
  4. 5. having the male and female reproductive organs in separate individuals.
  5. 6. a genus of highly unusual non-flowering plants.
  6. 8. grain- have a tough coat that has a form characteristic of the pollen-producing plant and which can still be recognized in some archaeological deposits.
  7. 9. Coat- the protective outer coat of a seed.
  8. 10. a plant closed in an outer shell.