Campbell Biology: Concepts & Connections (8th Edition)
8th Edition
ISBN: 9780321885326
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Chapter 31, Problem 13TYK
Name two kinds of asexual reproduction among plants. Explain two advantages of asexual reproduction over sexual reproduction. What is the primary drawback of asexual reproduction?
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This figure summarises the life cycle of a seed plant. The blue circles named A and B represent the sexually mature individual of each phase of the life cycle.
1) What is this life cycle called?
2) Plant B is in the diploid phase. What is another name for this plant?
3) If A is the haploid phase, in which phase would you find sepals? Write just the letter of the individual corresponding to the correct phase
4) If B is the haploid phase, in which phase would you find synergids? Write just the letter of the individual corresponding to the correct phase
5) If B is the diploid phase, in which phase would you find the nucellus? Write just the letter of the individual corresponding to the correct phase
6) If A is the diploid phase, in which phase would you find the sperm cells? Write just the letter of the individual corresponding to the correct phase
7) If A is the diploid phase, in which phase would you find selection on flower colour? Write just the letter of the individual corresponding…
The drooping, bell-like flower Aquilegia canadensis is adapted for cross-pollination. However, if the plant has not been pollinated previously, self-pollination can occur. However, if cross pollination occurs after self-pollination takes place, the pollen from cross pollination reaches the style before the pollen from self-pollination. Using course concepts and vocabulary 1) Provide a reasoning for this phenomenon. 2) Would this adaptation for reproduction be beneficial for the plant?
1.
a)List two characteristics of plants that make them unique.
b)Why do plants need to exchange gases with the environment?
c)Distinguish between a fibrous root and a taproot.
d)What is the main driving force for the movement of water in plants?
e)State four benefits of asexual reproduction in plants.
Chapter 31 Solutions
Campbell Biology: Concepts & Connections (8th Edition)
Ch. 31 - Prob. 1CCCh. 31 - In angiosperms, each pollen grain produces two...Ch. 31 - Prob. 3TYKCh. 31 - Prob. 4TYKCh. 31 - Prob. 5TYKCh. 31 - Produces sperm a. pollen gain b. ovule c. anther...Ch. 31 - Prob. 7TYKCh. 31 - Houses ovulesa a. pollen grain b. ovule c. anther...Ch. 31 - Prob. 9TYKCh. 31 - Prob. 10TYK
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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
- Can you answer all the parts to this question please (a) What are the advantages of the self-incompatibility (SI) system in plants? Give at least three advantages. (b) What are the differences between gametophytic SI and sporophytic SI?arrow_forwardWhich of the following processes occurs in a plant's sexual life cycle? sporophytes produce gametes by meiosis sporophytes produce gametes by mitosis gametophytes produce gametes by meiosis gametophytes produce gametes by mitosisarrow_forwardDraw a simple diagram illustrating alternation of generations in plants, including the sporophyte and gametophyte generations, spores, gametes (eggs and sperm), meiosis, and fertilization. Be sure to indicate whether each generation or kind of cell is haploid or diploid.arrow_forward
- Describe at least 2 methods of asexual and sexual reproduction of plants. Cite examples and provide pictures.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_forwardDefine the term inflorescence. Explain the basis for the different types of inflorescence in flowering plants.arrow_forward
- Under what conditions is it selectively advantageous for a plant to produce offspring identical to itself?arrow_forwardThe conifer plant has 12 chromosomes (2n=12). For each of the four stages on the diagram of the conifer life cycle, labelled A-D, identify whether the stage is haploid or diploid, and indicate the number of chromosomes that would be found in the cells at each stage. Stage Haploid or Diploid? Number of chromosomes found in cells? A B C Darrow_forwardCompare and contrast the characteristics of a somatic embryo and a shoot grown directly from a leaf explant. Explain the differences between somatic and androgenic embryos.arrow_forward
- A 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_forwardWhy is the plant life cycleknown as alternation ofgenerations?arrow_forwardSuppose that 100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit. What does this indicate about the pollination process and success? A) 100% success: 100 pollen grains grew to 50 ovules, two to each, and double fertilization occurred. B) 100% success: Only 50% of the pollen grains germinated, but each produced 2 sperms to complete double fertilization in 50 seeds. C) 50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei. D) 50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 100 polar nuclei. correct answer and explanation why please.arrow_forward
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Plant Reproduction in Angiosperms; Author: Amoeba Sisters;https://www.youtube.com/watch?v=HLYPm2idSTE;License: Standard YouTube License, CC-BY