Campbell Essential Biology (7th Edition)
7th Edition
ISBN: 9780134765037
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 18BS
If an endangered species can reproduce by parthenogenesis, what implications might this have on efforts to repopulate that species? How might a parthenogenesis program harm such a species?
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As described in the Biology and Society section, some species (including some endangered species) have been shown to be capable of reproduction via parthenogenesis, without participation of a mate. What implications might this have on efforts to repopulate endangered species? What drawbacks might a parthenogenesis program have on the well-being of the species it targets?
What are advantages of asexual reproduction?
Select all that apply.
A) In a stable environment, a population that develops from asexual reproduction can grow quickly and thrive.
B) In an unstable environment, a population that develops from asexual reproduction can grow quickly and thrive.
C) Species that reproduce through asexual reproduction have more genetic diversity.
D) Organisms in isolated areas can still reproduce through asexual reproduction.
Most species reproduce sexually. Some species are entirely asexual, while others can reproduce in both modalities.
a) Why is asexual reproduction so rare?
b) What can we learn about the factors that maintain sexual reproduction from studying species that can reproduce both sexually and asexually?
Chapter 8 Solutions
Campbell Essential Biology (7th Edition)
Ch. 8 - Which of the following is not a function of...Ch. 8 - In what sense are the daughter cells produced by...Ch. 8 - Why is it hard to observe individual chromosomes...Ch. 8 - A biochemist measures the amount of DNA in cells...Ch. 8 - What phases of mitosis are opposite in terms of...Ch. 8 - Complete the following table to compare mitosis...Ch. 8 - If an intestinal cell in a dog contains 78...Ch. 8 - A micrograph of a dividing cell from a mouse shows...Ch. 8 - Prob. 9SQCh. 8 - Prob. 10SQ
Ch. 8 - Although nondisjunction is a random event, there...Ch. 8 - Prob. 12IMTCh. 8 - Prob. 13IMTCh. 8 - For each statement, identify which major theme is...Ch. 8 - A mule is the offspring of a horse and a donkey. A...Ch. 8 - You prepare a slide with a thin slice of an onion...Ch. 8 - Interpreting Data The graph shows the incidence of...Ch. 8 - If an endangered species can reproduce by...Ch. 8 - Every year, about a million Americans are...Ch. 8 - The practice of buying and selling gametes,...Ch. 8 - Prob. 21BS
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- The most notable differences between gamete formation in most animals and gamete formation in plants is that ______________. a) plants produce gametes in somatic tissue, whereas animals produce gametes in germ tissue b) plants produce gametes by mitosis, whereas animals produce gametes by meiosis c) plants produce only one of each gamete, but animals produce many gametes d) plants produce gametes that are diploid, but animals produce gametes that are haploidarrow_forwardAll of the following are correct about asexual reproduction EXCEPT a) it can create numerous offspring quickly b) the offspring are genetically identical to the parent c) it enables animals living in isolation to produce without a mate d) it is advantageous when the environment is changing and the organisms is stressed.arrow_forward1) Which statement below about asexual reproduction is FALSE? a) With asexual reproduction, offspring are genetically equivalent to the parent b) Asexual reproduction requires no partner c) Asexual reproduction requires meiosis d) Some organisms can reproduce both sexually and asexuallyarrow_forward
- Can you an example of species in the Philippines that has been documented to perform parthenogenesis?arrow_forwardWhy does sexual reproduction present a special problem for burrowing or sessile animals and parasites such as tapeworm? A) Lack of available food resources B) Late sexual maturity C) Difficulty encountering a member of the opposite sex D) Temperature of the environmentarrow_forwardSexual reproduction ________. A) allows animals to conserve resources and reproduce only during optimal conditions B) can produce diverse phenotypes that may enhance survival of a population in a changing environment C) yields more numerous offspring more rapidly than is possible with asexual reproduction D) enables males and females to remain isolated from each other while rapidly colonizing habitats E) guarantees that both parents will provide care for each offspringarrow_forward
- Describe an example of each of the following: a pre-zygotic barrier to reproduction a post-zygotic barrier to reproductionarrow_forwardWhich of the following is a disadvantage of sexual reproduction? a.)Offspring can be reproduced more quickly than by sexual means b.)Two parents are required for making sex cells c.)Offspring are genetically different d.)Genetic diversity makes organism respond uniformly to environment changesarrow_forwardMy college Bio teacher asked me this question in response to one of my photos I posted on Facebook: "I wonder why some birds exhibit sexual dimorphism while others do not." Can someone explain this phenomenom in detail?arrow_forward
- From an evolutionary standpoint, why is sexual reproduction advantageous for the continuation of a species?arrow_forwardAnswer choices: A) Fertilization B) meiosis C) zygote D) gamete E) germ cellarrow_forwardDefine the following terms related to sexual production: a.) Autosome b.) Sex chromosome c.) Gamete D.) Somatic cell E.) Homologous chromosomes F.) Homologous pairs G.) Gene H.) Allele I.) Diploid J.) Haploidarrow_forward
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