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1. Which of the following is not a characteristic that distinguishes gymnosperms and angiosperms from other plants? alternation of generations ovules integuments pollen dependent gametophytes 2. Match the correct derived character listed below with branch point 7 in the diagram: flowers embryos seeds vascular tissue 3. Match the correct derived character listed below with branch point 8 in the diagram… 4. Match the correct derived character listed below with branch point 9 in the diagram… 5. Match the correct derived character listed below with branch point 10 in the diagram… 6. Which of these is a male gametophyte? (Figure 2) 7. In pines, an embryo is a(n) _____. seed immature sporophyte food reserve for the immature sporophyte immature male gametophyte immature female gametophyte 8. Which of these statements is true about the gametophyte tissue that surrounds the pine embryo? It functions as a haploid food reserve. It functions as a diploid food reserve. It functions as a triploid food reserve. It develops from the fusion of a microspore and a megaspore. It is the remnant of the pollen tube. 9. In the pine, microsporangia form _____ microspores by _____. triploid ... fertilization diploid ... mitosis diploid ... meiosis haploid ... mitosis haploid ... meiosis 10. Which one of the following is true of seed plants, but not true of seedless plants? The sporophyte is dependent on the gametophyte. The sporophyte is large, and the gametophyte is small and independent. The gametophyte is reduced and dependent on the sporophyte. The spore is the main means of dispersing the offspring. A film of water is necessary for sperm to come in contact with eggs. 11. Which characteristic below is not unique to seed plants? ovules pollen spores seed coat 12. The diploid generation of the plant life cycle always _____. produces spores is called the gametophyte is larger and more conspicuous than the haploid stage develops from a spore produces eggs and sperm 13. The eggs of seed plants are fertilized within ovules, and the ovules then develop into _____. seeds spores gametophytes 14. The cells within pollen grains are _____ and together comprise the _____. diploid ... spores diploid ... sperm nuclei haploid ... spores haploid ... male gametophyte diploid ... a new sporophyte 15. Seeds have advantages over spores. For example, _____. seeds contain embryonic plants, an abundant food supply, and a protective covering seeds can survive for extended periods of time at reduced metabolic rates seeds are single cells, demanding fewer nutrients from the parent plants seeds can survive even in conditions that are unfavorable for the parent plants 16. What is located in the scalelike structures packed densely in pollen cones? sporophytes sporangia developing seedlings megasporocytes developing pollen tubes Answers: 1. alternation of generations 2. embryos 3. vascular tissue 4. seeds 5. flowers 6. E (those are pollen grain; A is the seed, B, C and D are all parts of the seed) 7. immature sporophyte 8. haploid food reserve 9. haploid…meiosis 10. The gametophyte is reduced and dependent on the sporophyte. 11. spores 12. produces spores 13. seeds 14. haploid…male gametophyte 15. seeds contain embryonic plants, a food supply and a protective covering 16. sporangia