BIOLOGY
4th Edition
ISBN: 9781266739606
Author: Hoefnagels
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 19, Problem 6WIO
A fern plant can produce as many as 50 million spores a year. (a) How are these spores similar to and different from seeds? (b) In a fern population that is neither shrinking nor growing, approximately what proportion of these spores is likely to survive long enough to reproduce? (c) What factors might determine whether an individual spore success fully produces a new fern plant?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Which of the following statements is accurate?
a) All plants have identical sporangia, all producing the same type of spores
b) Plants have an embryo that is protected inside (and nourished by) the
gametophyte
c) Gametangia produce gametes by meiosis whereas sporangia produce spores
by mitosis
d) Gametangia always produce haploid gametes whereas sporangia produce
diploid spores
e) Gametangia are multicellular structures whereas sporangia are unicellular
structures
Plants and animals originated in water environments and, much later, plants invaded the land and later still, animals invaded the land.
a) With respect to the four groups of plants (Bryophytes, seedless vascular plants, Gymnosperms, and Angiosperms), give the basic method of fertilization. That is, how do the sperm reach the eggs?
b) What is the significance of the fertilization methods to the invasion of the land by the Gymnosperms and Angiosperms?
Which 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.
Chapter 19 Solutions
BIOLOGY
Ch. 19.1 - Prob. 1MCCh. 19.1 - Prob. 2MCCh. 19.1 - How does vascular tissue adapt plants to land?Ch. 19.1 - Describe the reproductive adaptations of plants.Ch. 19.2 - Describe the three main groups of bryophytes.Ch. 19.2 - Prob. 2MCCh. 19.3 - Describe the four groups of seedless vascular...Ch. 19.3 - Prob. 2MCCh. 19.3 - Prob. 3MCCh. 19.4 - What are the characteristics of gymnosperms?
Ch. 19.4 - What are the four groups of gymnosperms?Ch. 19.4 - Prob. 3MCCh. 19.4 - What happens during and after pollination in...Ch. 19.5 - Prob. 1MCCh. 19.5 - Prob. 2MCCh. 19.5 - Prob. 3MCCh. 19.5 - Prob. 4MCCh. 19.6 - Prob. 1MCCh. 19.6 - What are some alternative hypotheses for why the...Ch. 19 - Which of the following is NOT a similarity between...Ch. 19 - Prob. 2MCQCh. 19 - What conditions did plants face when they moved to...Ch. 19 - Prob. 4MCQCh. 19 - Prob. 5MCQCh. 19 - Which adaptation to land is present in the most...Ch. 19 - Which type of plant may have a gametophyte that is...Ch. 19 - Reproduction in a pine tree is associated with a....Ch. 19 - In comparing the life cycle of an angiosperm to...Ch. 19 - What plant group is correctly matched with an...Ch. 19 - What characteristics do all land plants have in...Ch. 19 - Prob. 2WIOCh. 19 - How are terrestrial habitats different from...Ch. 19 - List the characteristics that distinguish the four...Ch. 19 - Prob. 5WIOCh. 19 - A fern plant can produce as many as 50 million...Ch. 19 - How do the adaptations of gymnosperms and...Ch. 19 - Prob. 8WIOCh. 19 - Describe how the petals, ovary, and ovule of...Ch. 19 - The immature fruit of the opium poppy produces...Ch. 19 - Scientists have studied plant populations that...Ch. 19 - Prob. 12WIOCh. 19 - Prob. 13WIOCh. 19 - Prob. 14WIOCh. 19 - Compare and contrast the life cycles of the four...Ch. 19 - Prob. 17WIOCh. 19 - Prob. 18WIOCh. 19 - What are the pros and cons of pursuing biofuels as...Ch. 19 - Prob. 1PITCh. 19 - Prob. 2PITCh. 19 - Prob. 3PITCh. 19 - Prob. 4PIT
Additional Science Textbook Solutions
Find more solutions based on key concepts
CAUTION How can evolutionary fitness be estimated? a. Document how long individuals survive. b. Count the numbe...
Biological Science (6th Edition)
Some people consider Pasteur or Koch to be the Father of Microbiology, rather than Leeuwenhoek. Why might they ...
Microbiology with Diseases by Body System (4th Edition)
Relative thickness of the myocardium in different chambers; the functional significance of those differences; a...
Anatomy & Physiology: The Unity of Form and Function
Describe Mendels conclusions about how traits are passed from generation to generation.
Concepts of Genetics (12th Edition)
Police Captain Jeffers has suffered a myocardial infarction. a. Explain to his (nonmedically oriented) family w...
Human Physiology: An Integrated Approach (8th Edition)
a. What three lineages of lobe-fins survive today? b. Go back to the phylogenetic tree in Interactive Question ...
Study Guide for Campbell Biology
Knowledge Booster
Learn more about
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
- A B C D G E F H a) On the diagram, which labeled structure represents the mature male gametophyte? I b) Which labeled structure represents the female megasporangium, prior to the production of spores? c) On the diagram, which labeled structure represents the immature male gametophyte? F d) Which labeled structure represents the mature female gametophyte? Jarrow_forwardA plant biologist discovers a new species of plant in the ashes of a recent forest fire along the sides of a steep mountain range. It is fall, and temperatures are dropping below freezing. The biologist cannot stay in the field to observe the plant. What can he infer about the plants reproductive strategy based on his recent observations? A) the plant will produce flowers because at this altitude there is sufficient sunlight B) the plant will produce comes because cones will mature into adult plants more rapidly C) the plant will produce cones because cones allow for seed dispersal through all seasons D) the plant will produce flowers because flowers can protect the seed from extreme conditionsarrow_forwarda) Imagine you are going to plant two bean seeds. You plant one bean seed normally, but you decide to poke little holes in the second bean seed before planting it. Which bean seed would you expect to germinate more quickly and why? (* b) Imagine you are going to plant two bean seeds. You plant one bean seed at room temperature and one bean seed in the fridge. Which bean seed would you expect to germinate more quickly and why?*arrow_forward
- 12. (a) Plant in FIGURE 12 can reproduce sexually or asexually. Sporophyte generation is dominant for this plant. A FIGURE 12 (i) Identify the name of the plant species in FIGURE 12 and its phylum. (ii) Name parts A and B. (iii) State the roles of part A and part B in reproduction.arrow_forward4. a) EXPLAIN the terms Haplobiontic and Diplobiontic Life Cycle and give ONE example for each b) Anthophytes show "alternation of generation". Identify the structures that represent the TWO stages in its life cycle. c) The diagrams in Figure 2 show the steps in the development of an embryo sac and pollen grain. In ovary megasporangial cell In anther microsporangial cells VI microsporocyte / pollen mother cells (2n) microsporocyte (n) megasporocyte / embryo sac mother cell (2n) 4 megaspores (n) 1 megaspore (..) tube nucleus and VII immature pollen grain antipodal nuclei - polar nuclei synergids egg nucleus .nucleus .nudeus . nudeus (.. VII embryo sac germinating pollen grain FIGURE 2 i) STATE the process that occurs at stages I to IV in the diagrams in Figure 2. ii) What is the chromosome content of the megaspore at III. ii) What are the names of nuclei formed during germination of the pollen grain at VIIIT iv) Identify TWO ways that the sporophyte of a fern differs from that of an…arrow_forward12) Why do you say that fertilization in seed plants is independent of water? A) Spermatid cells are not necessary for fertilization to occur in seed plants.B) Seed plants use pollen instead of spermatid cells for fertilization.C) Spermatid cells are carried by pollen grains.D) Which spermatid cells in seed plants are capable of resisting desiccation indefinitely.arrow_forward
- In embryophytes, especially spermatophya, what is the difference between a "sporocyte" (e.g., megasporocyte) and the actual spore (e.g., megaspore)? a) Meiosis: Megasporocyte is still diploid, megaspore haploid b) Mitosis, number of nuclei: Megaspore has eight cell nuclei, megasporocyte only one c) Cytokinesis: Megasporocyte has only one cell, Megaspore can have several (as endosporic gametophyte). d) None: the two terms are synonymous. e) Meiosis: Megaspore is still diploid, megasporocyte haploidarrow_forwardBased on this evidence, is it likely that burdock would reproduce as much if it didn’t have specially structured seeds? (a) it is most likely that it would still reproduce, but the offspring would probably be located much closer together (b) there is not enough information to speculate about how well burdock plants reproduce (c) no, there wouldn’t be as much burdock without its special structures (d) Yes, burdock would spread just as well regardless of the design of its seed podsarrow_forwardGlittering wood-moss (Hylocomium splendens) is a species of moss that can be found in Alaska and Canada. Based on what you know about mosses, what is likely true of the female gametes of glittering wood-moss? A) They are haploid.B) They lack flagella.C) They are produced when the gametophyte undergoes meiosis.D) They are smaller than the male gametes.E) They are housed in archegonia.arrow_forward
- Seeds and pollen grains are key adaptations for life on land. These adaptations relate to reproductive success and survival advantages. The following questions require you to explain some of these adaptations. A. Contrast sperm delivery in seedless plants with sperm delivery in seed plants. (5-6 sentence) B. Discuss at least one feature of seed plants that contributed to their success on land in contrast with seedless plants. (2-3 sentences) C. Flowering plants (Magnoliophyta) are the most successful of all plant groups in terms of their species diversity and ubiquity across habitat types. Climate warming is causing shifts in the timing of life history events for many species. Discuss how climate warming may influence reproductive strategies employed by flowering plants. (2-3 sentence)arrow_forwardCell differentiation describes the a) height of different species of pine trees. b) specialization of cells for different functions. c) different leaf shapes found on trees. d) colour change in fall leaves.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_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
General Embryology Review in 20 minutes; Author: Medical Animations;https://www.youtube.com/watch?v=4YKvVeVMmEE;License: Standard youtube license