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Unformatted text preview: 9. What is an ovuliferous scale? 10. What is a megaspore? 11. What is an integument? 12. Where does the megagametophyte get its nutrients from? 13. What are the products of double fertilization in Gnetophytes? How do they differ from double fertilization in angiosperms? 14. How does pollination occur in Gnetophytes? 15. What does the perianth consist of? 16. What is the calyx and corolla? 17. What are stamens and pistils made up of? 18. What are the ovules attached to? 19. How is the egg formed? 20. What is a megagametophyte? 21. What is the relationship between microsporangia and microspores? 22. What is a pollen tube? 23. How is the embryo protected? 24. What happens in double fertilization?...
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- Fall '08