Biological Science, Loose-leaf Edition (7th Edition)
7th Edition
ISBN: 9780135272800
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 28, Problem 12PIAT
What structure do moss sperm use for motility, and how does that reflect the evolution of land plants from green algae?
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Would you expect the sporophyte generation of a moss or a fern to have more mitotic divisions? Why?
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Describe two differences between a fern sporophyte and a moss sporophyte.
Are fern spores haploid or diploid? Are the spores produced by meiosis or mitosis? Where are the spores produced?
Chapter 28 Solutions
Biological Science, Loose-leaf Edition (7th Edition)
Ch. 28 - What important role does lignin play in vascular...Ch. 28 - Prob. 2TYKCh. 28 - What is a pollen grain? a. male gametophyte b....Ch. 28 - 5. What does it mean to say that a life cycle is...Ch. 28 - 6. SOCIETY Soils, water, and the atmosphere are...Ch. 28 - Prob. 7TYUCh. 28 - Explain the difference between homosporous and...Ch. 28 - Angiosperms such as grasses, oaks, and maples are...Ch. 28 - PROCESS OF SCIENCE You have been hired as a field...Ch. 28 - Is long-distance sex possible in mosses?
Moss...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which two structures evolved though a series of changes in the reproductive biology among some heterosporous plants during the late Devonian period allowed spermatophytes (seed plants) to reduce or eliminate their dependence on water for gamete fertilization and development of the embryo and allowed them to colonize a much wider range of habitats?arrow_forwardWhere are bulliform cells found in leaves?arrow_forwardThere are two alternative hypotheses about the life cycle of the early vascular plants, the transformation hypothesis and the interpolation hypothesis. If Rhynia and Sciadophyton are the two generations of one species, which hypothesis would be favored? Briefly describe the other hypothesis.arrow_forward
- Do mosses have an alternation of isomorphic or heteromorphic generations? That is, can you easily tell a moss gametophyte from a moss sporophyte? When we look at leafy green moss plants, what are we seeing—the gametophyte or the sporophyte? In a flowering plant species, would the equivalent stage be the plant or the pollen grains and megagametophytes?arrow_forwardSuppose an efficient conducting system evolved in a moss that could transport water and other materials as high as a tall tree. Which of the following statements about “trees” of such a species would not be true? (A) Spore dispersal distances would probably increase. (B) Females could produce only one archegonium. (C) Unless its body parts were strengthened, such a “tree” would probably flop over. (D) Individuals would probably compete more effectively for access to light.arrow_forwardAre fern spores haploid or diploid? Are the spores proudced by meiosis or mitosis? Where are the spores produced?arrow_forward
- Identify four derived traits that distinguish plants from charophyte green algae and facilitate life on land. Explain.arrow_forwardWhat is the dominant phase in the life cycle of a Pterophyte? Is it haploid or diploid? dentify the structure pictured below.arrow_forwardWhat is germplasm? Why is it necessary to have gemplasm collection?arrow_forward
- What structure gives rise to new plant cell walls?arrow_forwardWhat are leaves? what are the two types? What is the difference between homosporous plants and heterosporous plants? What are megaspores and microspores? What was significance of the ecological role of seedless vascular plants back when they dominated terrestrial habitats? Why is that so important to our modern world today?arrow_forwardWhat types of evidence support the hypothesis that land plants descended from the group of green algae known as charophytes?arrow_forward
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