Biology Vocab

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Across
  1. 3. sticky clear substance
  2. 6. the outer boundary layer of a seed
  3. 7. modified leaves that bear a sporangium or sporangia
  4. 9. member of the phylum gnetophyta that is classified with gymnosperms but has angiosperm like characteristics
  5. 10. highly unusual non-flowering plants
  6. 12. having unisexual flowers or cones, with the male flowers or cones of the same species
  7. 13. a mature ovule containing an embryo and bound by a protective seed coat
Down
  1. 1. a plant whose seeds are not enclosed within an ovary during their development
  2. 2. seed plants
  3. 4. the outermost layer of an an ovule
  4. 5. a structure derived from the microscope of seed plants that develops into a male gametophyte
  5. 8. vascular land plants
  6. 11. ovule tissue in which an embryo sac develops