A gymnosperm means naked seed b ovules and seeds are

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a. Gymnosperm means “naked seed.” b. Ovules and seeds are exposed on the surface of sporophylls. c. The female gametophyte produces several archegonia. d. The male gametophyte produces several antheridia. e. The male gametophyte is endosporic. 13. Living Gymnosperms; p. 413; moderate; ans: d Polyembryony is common in gymnosperms because a(n): a. seed produces several ovules. b. ovule produces several megasporangia. c. megasporangium produces several megaspores. d. megagametophyte produces several archegonia. e. archegonium contains several eggs. 14. Living Gymnosperms; pp. 413–414; moderate; ans: c In gymnosperms, pollination occurs usually by: a. insects. b. water. c. wind. d. birds. e. mammals. 15. Living Gymnosperms; p. 414; moderate; ans: a ______ produce nonmotile sperm. a. Conifers and gnetophytes b. Conifers and cycads c. Cycads and Ginkgo d. Cycads and gnetophytes e. Ginkgo and gnetophytes
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4 Chapter 18 Gymnosperms 16. Living Gymnosperms; p. 414; moderate; ans: c In which of the following groups is the pollen tube haustorial? a. Conifers and gnetophytes b. Conifers and cycads c. Cycads and Ginkgo d. Cycads and gnetophytes e. Ginkgo and gnetophytes 17. Living Gymnosperms; p. 414; moderate; ans: e In which gymnosperms do multiflagellated sperm swim to an archegonium? a. None b. Ginkgo only c. Gnetophytes only d. Cycads only e. Ginkgo and cycads 18. Phylum Coniferophyta; p. 414; easy; ans: b Which of the following statements about conifers is FALSE? a. They belong to the phylum Coniferophyta. b. Their leaves have humidity-resistant features. c. They are the most ecologically important gymnosperms. d. They include the pines, firs, and spruces. e. The tallest vascular plant is a conifer. 19. Phylum Coniferophyta; p. 415; moderate; ans: d Which of the following statements about pine leaves is FALSE? a. They have a thick cuticle. b. They have sunken stomata. c. They are spirally arranged and borne singly on the stem. d. They are arranged in indeterminate bundles called fascicles. e. Their vascular bundles are surrounded by transfusion tissue. 20. Phylum Coniferophyta; pp. 415–416; easy; ans: b The likely function of the transfusion tissue of pine leaves is to: a. protect leaf cells from physical damage. b. conduct materials between the mesophyll and vascular bundles. c. prevent water loss. d. act as a barrier to the movement of toxic compounds. e. give rise to indeterminate meristems.
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Chapter 18 Gymnosperms 5 21. Phylum Coniferophyta; p. 416; moderate; ans: e The longest-lived tree is: a. Sequoiadendron giganteum. b. Sequoiadendron semperiverens. c. dawn redwood. d. sago palm. e. bristlecone pine. 22. Phylum Coniferophyta; p. 417; moderate; ans: c In the pine life cycle, meiosis occurs in: a. archegonia. b. microspores. c. microsporocytes. d. pollen grains. e. sporophylls. 23. Phylum Coniferophyta; p. 417; easy; ans: b The daughter cells produced by a microsporocyte are: a. microspore mother cells. b. microspores. c. pollen grains. d. prothallial cells.
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