Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 22, Problem 11SQ
Summary Introduction
Introduction: Ferns are the diverse seedless vascular plants with well defined internal vein structures. Unlike flowering plants, they do not produce seeds or flowers. They reproduce through spores and pollinate through wind. They have alternation of generations with sporophyte generation being dominant.
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Why must bryophytes inhabit damp environment? It is because *
A. their sporophyte generation is dependent on the gametophyte.
B. their sperm must swim to reach the egg.
C. they do not have woody tissues.
D. females can produce only one archegonium.
1.
Which group bears stomata only in the sporophyte generation?
a.
Bryophyta
b.
Chrysophyta
c.
Marchantiophyta
d.
Anthocerophyta
2.
Which is TRUE about bryophytes?
a.
Not all bryophytes have conspicuous gametophyte generation.
b.
The gametophyte bears the sporangium where the spores are located.
c.
The sporophyte stage is dependent on the gametophyte for nutrition.
d.
All bryophytes exhibit a peristome which aids in nutrient transfer.
3.
Why is Sphagnum widely used as a growth medium in horticulture?
a.
Because it prevents nutrient deficiency due to its decay-resistant phenol-rich cell wall.
b.
Because it prevents salinity stress due to its high water-holding capacity.
c.
Because it prevents plasmolysis due to its high water-holding capacity.
d.
Because it prevents seed rot due to the antiseptic property of its phenol-rich cell wall.
The green, gametangia-bearing moss plant (a) is the haploid gametophyte generation (b) is the diploid sporophyte generation (c) is called a protonema (d) contains cells with single large chloroplasts (e) b and c
Chapter 22 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 22 - Insect-Assisted Fertilization in Moss Moss sperm...Ch. 22 - Prob. 2DAACh. 22 - Insect-Assisted Fertilization in Moss Moss sperm...Ch. 22 - The first land plants were ___ . a. gnetophytes b....Ch. 22 - Lignin supports. the stems of ___ . a. mosses b....Ch. 22 - A waxy cuticle helps land plants ___ . a. oonserve...Ch. 22 - True or false? Ferns produce seeds inside sori.Ch. 22 - ___ attach mosses to soil. a. Rhizoids b. Rhizomes...Ch. 22 - Bryophytes alone have a relatively large ___ and...Ch. 22 - Club mosses, horsetails, and ferns are ___ plants....
Ch. 22 - Coal consists primarily of compressed remains of...Ch. 22 - Prob. 9SQCh. 22 - A seed is a(n) ___ . a. female gametophyte b....Ch. 22 - Prob. 11SQCh. 22 - Which angiosperm lineage includes the most...Ch. 22 - Match the terms appropriately. ____ bryophyte a....Ch. 22 - Match the terms appropriately. ____ ovule a....Ch. 22 - Place these groups. in order of their appearance...Ch. 22 - Early botanists admired ferns but found their life...Ch. 22 - In animals, meiosis of germ cells produces...Ch. 22 - Consider a cherry pit, which is a seed with a...Ch. 22 - Suppose you wanted to make a science fiction film...Ch. 22 - Lignin and vascular tissue first evolved in...
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- In bryophytes, eggs are fertilized in a chamber on the ________ and a zygote develops into a _______. a. sporophyte; gametophyte b. gametophyte; sporophyte c. sorus; conearrow_forwardOne characteristic that separates ferns from complex vascular plants is that ferns do not havea. a vascular system.b. chloroplasts.c. alternation of generations in their life cycle.d. seeds.arrow_forwardWhich statement about bryophytes is not correct? A. They lack xylem and phloem B. The dominant phase of their life cycle is diploid C. They are the first land plants D. Sperm can be aided in their travel to the egg by insects E. They have cells with 9+2 flagellaarrow_forward
- 1.Spraying some plants with a combination of auxin and gibberellins will . A. promote ripening of fruits B. promote fruit formation C. preventing senescence D. enlargers’ fruit growth 2. All lowering plants belong to class . A. conifers B. angiospermae C. felicinae D. gymnospermaearrow_forwardThe following evolutionary trends are seen in the seedless land plants. a. Gametophytes became photosynthetic. b. A key innovation accompanying the appearance of pterophytes was the haplodiplontic life cycle. c. The gametophyte generation became the dominant generation. d. There is increased protection of the sporophyte generation in its early developmental stages.arrow_forwardThe alternation of generations life cycle applies to gymosperms in that: A. the gametophyte stage is reduced B. the sporophyte stage is reduced C. the gametes are produced via meiosis D. the spores are produced via meiosisarrow_forward
- No need to say why, just choose the correct answer please. 1. )Bryophytes do not have true roots. What do they use to anchor themselves to the ground? a) Cuticles. b) Antheridia. c) Rhizoids. d) Spores. e) Archegonia. 2)Vascular plants with spores borne in sporangia on the underside of leaves are characteristic of which of the following plant groups? a) Mosses, b) Ferns. c) Conifers. d) Flowering plants. e) Golden algae. 3). Double fertilization in angiosperms is fusion of: a) One sperm with egg and the other with synergids. b) One sperm with synergids and the other with two polar nuclei. c) One sperm with two eggs. d) One sperm with egg and the other with two polar nuclei. e) One sperm with egg and the other with two antipodal nuclei. 4. ) The ground tissue cell type that is surrounded by lignin to make the cell walls thick and tough is: a) Annular collenchyma. b) Angular collenchyma. c) Palisade parenchyma. d) Sclerenchyma. e) Chlorenchyma. 5) A cross section…arrow_forwardFerns havea. a dominant gametophyte generation.b. vascular tissue.c. seeds.d. Both a and b are correct.e. Choices a, b, and c are correct.arrow_forwardWhich of the following characteristics of plants is absent intheir closest relatives, the charophyte algae?(A) chlorophyll b(B) cellulose in cell walls(C) sexual reproduction(D) alternation of multicellular generationsarrow_forward
- The gametophyte is the dominant stage in the life cycle for which of the following plant groups? A. ferns B. horsetails C. liverworts D. whisk ferns E. club mossarrow_forwardDraw the life cycle of a typica bryophyte such as moss. Your drawing should contain the following terms: 2N and N, Sporophyte and Gametophyte, Sporangium, Meiosis, Spores, Protonema, Antheridium, Sperm, Archegonium, Egg and Fertilizationarrow_forwardThe structure of the fern sporangium shown promotes spore dispersal by a ‘catapult’ mechanism. What is the driving force involved? A. Increased pressure within the sporangium B. Opening of the sporangium mouth C. Elastic rebound D. Water evaporation from the annulusarrow_forward
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General Embryology Review in 20 minutes; Author: Medical Animations;https://www.youtube.com/watch?v=4YKvVeVMmEE;License: Standard youtube license