Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 25.1, Problem 1CC
Why do you think liverworks, mosses, and hornworts produce their reproductive spores on raised structures?
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Draw 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 Fertilization
Byrophytes are usually found in areas that are very wet or damp at least part of the year. Which of the following statements describes characteristics of byrophytes that make them dependent on water? State all that numbers that apply.
1. They have a dominant gametophyte phase.
2. They have swimming sperm that need water so they can swim to fertilize the eggs of other nearby plants.
3. They do not have lignin-stiffened vascular tissue or roots to effectively distribute water throughout the plant.
If ferns produce spores, are they a sporophyte or agametophyte? Are they haploid or diploi
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 25 Solutions
Principles of Biology
Ch. 25.1 - Why do you think liverworks, mosses, and hornworts...Ch. 25.1 - Prob. 1TYKCh. 25.1 - Prob. 2TYKCh. 25.2 - Prob. 1CCCh. 25.2 - Prob. 2CCCh. 25.2 - Prob. 1TYKCh. 25.2 - Prob. 2TYKCh. 25.3 - In what way are gymnosperms different from...Ch. 25.3 - Prob. 2TYKCh. 25.4 - Prob. 1TYK
Ch. 25.4 - Prob. 2TYKCh. 25.5 - In what other way do corn ears differ from thoseof...Ch. 25.5 - What feature of wild food did humans alter during...Ch. 25 - Prob. 1TYCh. 25 - Prob. 2TYCh. 25 - Prob. 3TYCh. 25 - Prob. 4TYCh. 25 - Prob. 5TYCh. 25 - Prob. 6TYCh. 25 - Prob. 7TYCh. 25 - Prob. 8TYCh. 25 - Prob. 9TYCh. 25 - Prob. 10TYCh. 25 - Prob. 1CCQCh. 25 - Prob. 2CCQCh. 25 - Prob. 3CCQCh. 25 - Prob. 1CBQCh. 25 - Prob. 2CBQ
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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
- What is the function of the sporophyte (that is, what does it do, or what reproductive structures does it produce)? What type of nuclear division must take place for the sporogenous tissue to become spores? Is the protonema part of the gametophyte or sporophyte generation?arrow_forwardWhich of the following are parts of the gametophyte generation in mosses: antheridia, zygote, embryo, capsule, archegonia, sperm cells, egg cell, spores, and protonema?arrow_forwardWhat letter in the diagram identifies the sporophyte? Which letter in the diagram indicates the gametophyte? What letters in the diagram indicates the gametes? What letter in the diagram identifies the spores? What is the part of the lifecycle labeled I?arrow_forward
- If you are looking at the fungal structure we usually call a mushroom, what are you looking at?arrow_forwardWhat is the dominant phase in the life cycle of a Bryophyte? How does this compare to the dominant phase of the rest of the land plants? What phase of the life cycle (gametophyte or sporophyte) produces Bryophyte spores? By what process of cell division (mitosis or meiosis) are the spores produced?arrow_forwardWhat is the function of the sporophyte (that is, what does it do, or what reproductive structures does it produce)?arrow_forward
- Which part of the life cycle of Equisetum is dominant, the sporophyte or gametophyte?arrow_forwardRhizomes are involved in the asexual reproduction of ferns. How could this happen?arrow_forwardWhich of the following comparisons between the moss life cycle and fern life cycle are correct? A) Mosses have flagellated sperm that need water to reach the female gamete, while the sperm of ferns are unflagellated and are not dependent on water.B) The sporophyte generation is smaller than the gametophyte generation in mosses, but the sporophyte generation is much larger than the gametophyte generation in ferns.C) The spores are produced in capsules on stalks in mosses but in small structures called sori on the underside of leaves in ferns.D) The gametes are produced in gametangia in mosses but in specialized structures on the underside of leaves in ferns.E) Both kinds of plants depend on wind for dispersal of spores.arrow_forward
- One of the genera of Lycophytes are the Selaginellaceae. Like other Lycophytes, Selaginellids bear their spores in a strobilus but they have an unusual strobilus. Which answer below best describes this difference? O their spores are always diploid O they are gaemtophyte dominant O their spores are heterosporous O their strobilus is dependnent upon the female gametophyte like mosses APR 25 étv MacBook Pro G Search or type URL @ #3 % %24arrow_forwardhttp://botit.botany.wisc.edu/botany_130/diversity/plants/mosses.html Make a complete moss life cycle with the following phases and structures. Note: download the images of Mnium from this link and arrange them in the exact sequence to make the lifecycle. Lifecycle structures with cell division: Meiosis, fertilization within archegonium, capsule (sporangium), spores (n), protonema (n) (Image), male gametophyte (n) (Image), female gametophyte (n) (Image), antheridia (Image), archegonia (Image), sperm, egg, water, zygote (2n), embryo, young growing sporophyte (2n), mature sporophyte (2n) (Image), rhizoids. You can insert the non-image part, using the textbox and fill out the suitable s text. For symbol, click on the shape option and inter in your lifecycle diagram at the required placearrow_forwardAre fern spores haploid or diploid? Are the spores proudced by meiosis or mitosis? Where are the spores produced?arrow_forward
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