Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 25, Problem 20RQ
The dominant organism in fern is the
- sperm
- spore
- gamete
- sporophyte
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The dominant organism in fern is the ________. a. sperm b. spore c. gamete d. sporophyte
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Chapter 25 Solutions
Biology 2e
Ch. 25 - Figure 25.6 Which of the following statements...Ch. 25 - Figure 25.14 Which of the following statements...Ch. 25 - Figure 25.24 Which of the following statements...Ch. 25 - The land plants are probably descendants of which...Ch. 25 - Alternation of generations means that plants...Ch. 25 - Which of the following traits of land plants...Ch. 25 - How does a haplontic plant population maintain...Ch. 25 - What characteristic of Charales would enable them...Ch. 25 - Which one of these characteristics is present in...Ch. 25 - A scientist sequences the genome of Chara, red...
Ch. 25 - Which of the following features does not support...Ch. 25 - Which of the following structures is not found in...Ch. 25 - Stomata appear in which group of plants? Charales...Ch. 25 - The chromosome complement in a moss protonema is:...Ch. 25 - Why do mosses grow well in the Arctic tundra? They...Ch. 25 - A botanist travels to an area that has experienced...Ch. 25 - Microphylls are characteristic of which types of...Ch. 25 - A plant in the understory of a forest displays a...Ch. 25 - The following structures are found on the...Ch. 25 - The dominant organism in fern is the sperm spore...Ch. 25 - What seedless plant is a renewable source of...Ch. 25 - How do mosses contribute to returning nitrogen to...Ch. 25 - The production of megaphylls by many different...Ch. 25 - Why did land plants lose some of the accessory...Ch. 25 - What is the difference between extant and extinct?Ch. 25 - Describe at least two challenges that cactuses had...Ch. 25 - Describe a minimum of two ways that plants changed...Ch. 25 - To an alga, what is the main advantage of...Ch. 25 - In areas where it rains often, mosses grow on...Ch. 25 - What are the three classes of bryophytes?Ch. 25 - Describe two adaptations that are present in...Ch. 25 - Bryophytes form a monophyletic group that...Ch. 25 - How did the development of a vascular system...Ch. 25 - Which plant is considered the most advanced...Ch. 25 - Ferns are simultaneously involved in promoting...
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- Figure 25.24 Which of the following statements about the fern life cycle is false? Sporangia produce haploid spores. The sporophyte grows from a gametophyte The sporophyte is diploid and the gametophyte is haploid. Sporangia form on the underside of the gametophyte.arrow_forwardFigure 25.14 Which of the following statements about the moss life cycle is false? The mature gametophyte is haploid. The sporophyte produces haploid spores. The calyptra buds to form a mature gametophyte. The zygote is housed in the venter.arrow_forwardMegasporocytes will eventually produce which of the following? pollen grain sporophytes male gametophytes female gametophytesarrow_forward
- Club mosses, horsetails, and ferns are ___ plants. a. multicelled aquatic b. nonvascular seed c. seedless vascular d. seed-bearing vasculararrow_forwardMoss is an example of which type of plant? a. haplontic plant b. vascular plant c. diplontic plant d. seed plantarrow_forwardDescribe the life history of fern with the significance of alternation of generations.arrow_forward
- true or false. The fern stage on the right side of the life cycle is the gametophytearrow_forwardGive the advantages and disadvantages of having a dominant gametophyte phase in the life cycle of the Bryophytes.arrow_forwardThe following structures are found on the underside of fern leaves and contain sporangia: a. sori b. rhizomes c. megaphylls d. microphyllsarrow_forward
- Gametophytes of ____ plants form protected inside reproductive parts on a sporophyte body. nonvascular seed nonvascular seedless vascular seed vascular seedless allarrow_forwardTrue or Falsea. The Phylum Glomeromycota is fungi that produce sexual spore in their asci. b. Gymnosperms seeds has a higher chance of survival rate even the dormancy period is prolonged c. The only living genera of Division Psilophyta are: Lycopodium and Psilotumd The gametophyte of mosses is differentiated into protonema and foliose gametophere.arrow_forwardThe alteration of generations comes from the fact that the sporophyte generation and gametophyte generation occur alternately. True False The gametophytes of mosses are much smaller than their sporophytes. True False Gametophytes develop into gametes and sporophytes develop into spores. True Falsearrow_forward
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