Biology: The Unity and Diversity of Life (Looseleaf)
15th Edition
ISBN: 9781337408417
Author: STARR
Publisher: CENGAGE L
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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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The gametophytes of ferns_____ . a. are photosynthetic c. are diploid b. produce spores d. are dependent on the in sori sporophyte for nutrition
The sporophyte of nonvascular plants
A. possesses anthers and archegonia
O B. produces spores
C. is the dominant stage of their alternation of generations
D. produces non-motile sperm cells
E. is dependent on wind pollination
No need to explain why
1. Which of the following is not true of the gymnosperms? *
A. Less dependent on water for fertilization
B. Heterosporous
C. Seed is not enclosed within an ovary
D. Nonvascular plant
2. Which of the following phyla of the gymnosperm is the most advanced? *
A. Ginkgophyta
B. Gnetophyta
C. Coniferophyta
D. Cycadophyta
3. In which of the following features does angiosperm resemble a gymnosperm? *
A. Mode of fertilization
B. Presence of ovules
C. Nature of endosperm
D. Presence of vessel
4. How would you differentiate the phloem of a gymnosperm from an angiosperm? *
A. having a no companion cells
B. having no sieve tubes
C. having no schlerenchyma
D. having parenchyma
5. Which of the following does not function as support of angiosperms? *
A. tracheids
B. fiber
C. lignin
Chapter 22 Solutions
Biology: The Unity and Diversity of Life (Looseleaf)
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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- Label the Heterosporous Vascular Plant life cycle: A: Microgametophyte B: Antheridium C: Archegonium D: Zygote E: F: G: H: J: K: Meiosis L: M:arrow_forwardбуmnosperms Type of spore formed by heterosporous species which give rise to female gametophytes. A. Hetrospores B. Mergasporngiav C. Homospores D. Megasporesarrow_forward1. 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.arrow_forward
- In an alternation of generations life cycle, spores developinto____________ that produce gametes that fuse to giverise to__________ .a. haploid gametophytes; diploid sporophytesb. diploid gametophytes; haploid sporophytesc. haploid sporophytes; diploid gametophytesd. diploid sporophytes; haploid gametophytesarrow_forwardWhich of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on modified leaves. b. Reproductive structures are located in a flower. c. After fertilization, the ovary thickens and forms a fruit. d. The gametophyte is longest phase of the life cycle.arrow_forwardIn addition to having simple vascular tissue, seedless vascular plants differ from all bryophytes in that: a. they do not require free water for fertilization. b. the sporophyte generation is dominant. c. most do not require a moist, humid, or shaded habitat. d. the group is much more diverse, with many more speciesoverall. e. most have a feathery or flattened thallus.arrow_forward
- The waxy layer that covers aerial parts of plants is the (a) cuticle (b) archegonium (c) protonema (d) stoma (e) thallusarrow_forwardFigure 23.28 Which of the following statements about the Laminaria life cycle is false? In zoospores form in the sporangia. The sporophyte is the 2n plant. The gametophyte is diploid. Both the gametophyte and sporophyte stages are multicellular.arrow_forwardIn bryophytes, eggs are fertilized in a chamber on the ________ and a zygote develops into a _______. a. sporophyte; gametophyte b. gametophyte; sporophyte c. sorus; conearrow_forward
- In flowers, the structures that produce male gametophytes are called _______ ;the strcutures that produce female gametophytes are called _______ . a. pollen grains; flowers c. anthers; stigma b. stamen; carpels d. megaspores; microsporesarrow_forwardA horizontal underground stem that may or may not be fleshy and that is often specialized for asexual reproduction is called a (a) stolon (b) bulb (c) corm (d) rhizome (e) tuberarrow_forwardWhich feature(s) do ferns share with all other land plants? a. sporophyte and gametophyte life cycle stages b. gametophytes supported by a thallus c. dispersal of spores from a sorus d. asexual reproduction by way of gemmae e. water uptake by means of rhizoids.arrow_forward
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