Chapter 23—The Plant Kingdom: Seedless Vascular Plants Key
1. Seedless vascular plants
2. Which is/are seedless plants that have xylem and phloem?
3. Ferns
4. Which of the following statements concerning microphylls is FALSE?
5. Megaphylls
6. In the hypothesized evolution of megaphylls, which process followed “overtopping”?
7. Which of the following statements concerning ferns is FALSE?
8. The sporophyte of ferns
9. The terms rachis, pinnae, and fiddlehead are associated with which of the following?
10. A tightly coiled young fern frond is called a
11. A sorus is a cluster of
12. In ferns, spore mother cells divide by ____ forming ____.
13. Fern spores are disseminated by
14. In ferns, the annulus is part of the
15. The prothallus is
16. The prothallus directly produces
17. Which of the following statements concerning ferns is FALSE?
18. The ____ lack true roots and leaves.
19. Dichotomous branching is a characteristic of
20. An example of a whisk fern is
21. Whisk ferns have sporangia borne at the ends of
22. Molecular data support the hypothesis that whisk ferns
23. Some ancient horsetails
24. Which of the following statements concerning horsetails is FALSE?
25. An example of a horsetail is
26. Hollow, jointed stems containing with silica are a characteristic of
27. Horsetails have
28. Elaters function most directly in
29. Which of the following statements concerning club mosses is FALSE?
30. An example of a club moss is
31. Club mosses possess
32. Club mosses have
33. In club mosses
34. An example of a spike moss is
35. Which of the following exhibits dichotomous branching of both roots and shoots?
36. Subterranean gametophytes of club mosses and some whisk ferns
37. Who am I? I have ligules?
38. Heterospory
39. Which of the following is heterosporous?
40. A megasporangium produces ____ which then divides forming ____.
41. A microspore will produce
42. In the Selaginella life cycle, the male gametophyte
43. An example of a quillwort is
44. Which of the following statements concerning quillworts is FALSE?
45. Which of the following statements concerning Rhynia gwynne-vaughanii is FALSE?
46. Ferns can be considerably larger than bryophytes because ferns have conduction and support provided by
their vascular tissues.
47. Megaphylls are thought to have evolved in response to increasing levels of atmospheric CO2.
48. The closet living relatives of the seed plants are the ferns.
49. Like bryophytes, ferns require water to transport sperm to egg.
51. Horsetails possess microphylls.
52. The leaves of ferns are called fronds.
53. In most ferns, the sporangia develop on fertile areas of the stem.
54. Spore mother cells produce spores by undergoing meiosis.
55. Dichotomous branching is considered an advanced characteristic from an evolutionary standpoint.
56. Sporangia of whisk ferns are borne on the tips of the leaves.
57. The three groups of lycophytes are the club mosses, spike mosses, and true mosses.
58. Some ferns and club mosses are heterosporous.
59. Ferns have an apical meristem with a single apical cell.
60. The most economically important seedless vascular plants are those alive today.
61. The ____________________ tissue of ferns consists of xylem and phloem.
62. ____________________ are true leaves with a single vascular strand.
63. ____________________ evolved from stem branches.
64. The ____________________ is the dominant generation in ferns.
65. Ferns usually have a horizontal underground stem called a(n) ____________________.
66. Fern sporangia are frequently borne in clusters called ____________________.