Chapter 22 Vocab

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Across
  1. 4. a sticky flammable organic substance, insoluble in water, exuded by some trees and other plants
  2. 5. coat- the protective outer coat of a seed.
  3. 6. division of vascular land plants containing a single extant class, Pinopsida
  4. 8. typically have a stout and woody trunk with a crown of large, hard and stiff, evergreen leaves. They usually have pinnate leaves. The individual plants are either all male or all female
  5. 9. a leaf that bears sporangia
  6. 10. a tough outer protective layer, especially that of an animal or plant
  7. 13. a plant or invertebrate animal) having the male and female reproductive organs in separate individuals
Down
  1. 1. a division of plants, grouped within the gymnosperms
  2. 2. a genus of highly unusual non-flowering plants.
  3. 3. embryonic plant enclosed in a protective outer covering
  4. 7. a plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo
  5. 11. he central part of an ovule, containing the embryo sac.
  6. 12. grain- each of the microscopic particles, typically single cells, of which pollen is composed.