Tx21600x16560 20 x576012960o 8 phylum coniferophyta p

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tx2160=0=x16560 =20 =x5760=12960=o 8. Phylum Coniferophyta; p. 417; easy; ans: F= =20 =0=360= In =018617 Pinus, =8018617 ovulate cones are usually borne on the lower branches of the tree. tx2160=0=x16560 =20 =x5760=12960=o 9. Phylum Coniferophyta; p. 420; moderate; an=s: T =20 =0=360= In pine, the ovuliferous= scales are modified determinate branch systems. tx2160=0=x16560 =20 =x5760=12960=o 10. Phylum Coniferophyta; p. 421; moderate; a=ns: T =20 =0=360= In pine, the mature micr=ogametophyte is the germinated pollen grain. tx2160=0=x16560 =20
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=0f0Chapter 18 Gymnosperms 11=20 =018617=20 =x5760=12960=o 11.Phylum Coniferophyta; p. 421; moderate; a=ns: F =20 =0=360= In pine, only one egg of= all the archegonia in an ovule is fertilized. tx2160=0=x16560 =20 =x5760=12960=o 12. Phylum Coniferophyta; p. 421; easy; ans: =T =20 =0=360= In conifer seeds, the fo=od supply is haploid. tx2160=0=x16560 =20 =x5760=12960=o 13. Phylum Coniferophyta; p. 424; moderate; a=ns: T =20 =0=360= Araucaria =nsrsid8018617 is a valuable timber tree in South America. tx2160=0=x16560 =20 =x5760=12960=o 14. Other Living Gymnosperm Phyla: Cycadophyt=a, Ginkgophyta, and G=netophyta; p. 429; moderate; ans: T =20 =0=360= In cycads and =22Ginkgo , fs22 male and female gametophytes are produced on separate =plants. tx2160=0=x16560 =20 =x5760=12960=o 15. Other Living Gymnosperm Phyla: Cycadophyt=a, Ginkgophyta, and Gnetophyta; p. 431; easy; ans: T =17=20 =0=360= Members of the phylum Gn=etophyta have strobili that resemble flower clusters. tx2160=0=x16560 =20 =x5760=12960=o 16. Other Living Gymnosperm Phyla: Cycadophyt=a, Ginkgophyta, and Gnetophyta; pp. 431–432; moderate; ans: T =s22=20 =0=360= Gnetum =id8018617 and Welwitschia=018617, but not =rsid8018617 Ephedra, resem=ble angiosperms in lacking archegonia. tx2160=0=x16560 =20 =20 Essay Questions ==20 =20 =x5760=12960=o 1. Introduction; p. 408; easy =id8018617=20 =0=360= In what way was the seed= such an important adaptation in the evolution of plants? tx2160=0=x16560 =20 =x5760=12960=o 2. Evolution of the Seed; p. 410; moderate = =20 =0=360= List the key events that= led to the evolution of the ovule.=20 tx2160=0=x16560 =20 =x5760=12960=o 3. Extinct Gymnosperms; pp. 412–414; d=ifficult =20 =0=360= Describe the features of= the Bennettitales. Why is this group “enigmatic”? tx2160=0=x16560 =20 =x5760=12960=o 4. Living Gymnosperms; p. 413; difficult = =20 =x5760=12960=o Discuss the phylogenetic relationships among the fo=ur groups of living gymnos perms. =20 tx2160=0=x16560 =20 =x5760=12960=o 5. Living Gymnosperms; p. 414; moderate fs22=20 =0=360= Discuss the role and evo=lutionary development of the pollen tube. tx2160=0=x16560 =20 =x5760=12960=o 6. Phylum Coniferophyta; p. 415; difficult f0 =20 =0=360= Describe the determinate= fascicles of pine. tx2160=0=x16560 =20 =x5760=12960=o 7. Phylum Coniferophyta; pp. 417–422; =difficult =20 =0=360= Outline the main events =of the pine life cycle, indicating the time frame for each. tx2160=0=x16560 =20 =x5760=12960=o 8. Phylum Coniferophyta; pp. 413, 421; modera=te =20
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=0f0Chapter 18 Gymnosperms 12=20 =018617=20 =0=360= What is polyembryony? De=scribe the types of polyembryony that occur in pines. tx2160=0=x16560 =20 =x5760=12960=o 9. Phylum Coniferophyta; p. 420; difficult f0 =20 =0=360= Explain why an ovulifero=us scale is more properly called a seed-scale complex.=20 tx2160=0=x16560 =20 =x5760=12960=o 10. Phylum Coniferophyta; p. 421; moderate f0 =20 =0=360= Describe the three diffe=rent generations coexisting in a pine seed.
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