vocab chap 22

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Across
  1. 2. coat- outer boundary layer of seed it is developed from the integument
  2. 3. modified leaf that bears a sporangium
  3. 6. apperence of a hybrid of a tree fern and a palm
  4. 7. fan shaped leves, fleshy seeds
  5. 10. unisexual flowers or cones with male flowers or cones confiend to certain plants.
  6. 11. mature ovule containing an embryo and bound by a protective seed coat
  7. 12. grain- a structure derived from the microspore of seed plants
  8. 13. a sticky flammable organic substance, insoluble in water, exuded by some trees and other plants
Down
  1. 1. of plants, grouped within the gymnosperms
  2. 4. division of vascular land plants containing a single extant class, Pinopsida.
  3. 5. organelle of living cell that contains chromosomes and is essential to the regulation and control of all the cells function
  4. 8. a plant whose seeds are not enclosed with an ovary during their development
  5. 9. outermost layer of an ovule usually develops into a seed coat