Final%20Study%20Questions%202007

Final%20Study%20Questions%202007 - 1. 2. What feature...

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1. What feature distinguishes gymnosperms from all other groups of plants? What environmental change led to radiation of the seed plants? 2. Which gymnosperm division (a) is the chief source of lumber? (b) was dominant in the age of dinosaurs? (c) has one living species? (d) has traits most similar to flowering plants? 3. Diagram the life cycle of pine, showing sporophyte, male and female strobili, mega- and micro-sporangia, mega- and micro- spores, mega- and micro-gametophytes, archegonia, ovule, pollen grain, integument, and seed. 4. State the ploidy (1n or 2n) of each structure named in item 4. 5. Describe pollination and fertilization in pine. 6. Describe the development of the pine seed from the fertilized ovule, and identify he structures in the ovule that become the storage tissue and seed coat. 7. How do the ovule, pollen grain, and seed improve on the corresponding items in seedless plants with respect to survival on dry land? 8. Why are seed plants considered to be heterosporous? 9. State the defining difference between gymnosperms and the Angiosperms. 10. Diagram the life cycle of a flowering plant, showing parental sporophyte, embryo, megasporangia, microsporangia, megaspores, microspores, megagametophyte,
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Final%20Study%20Questions%202007 - 1. 2. What feature...

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