Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Question
Chapter 15.2, Problem 2TC
Summary Introduction
To determine:
Is sexual reproduction required to generate the variability in structures and behaviors that is necessary for natural selection.
Introduction:
The natural selection depends on the variation in the organisms. The organisms may evolve from mutation, genetic drift, and migration. The natural selection can act on both sexual as well as asexual organisms.
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Chapter 15 Solutions
Biology
Ch. 15.1 - identify some of the thinkers whose ideas set the...Ch. 15.1 - Prob. 2CYLCh. 15.1 - define evolution?Ch. 15.2 - A recent study found that Galpagos mockingbirds on...Ch. 15.2 - Prob. 2TCCh. 15.2 - explain how natural selection works and how it...Ch. 15.2 - describe the logic, based on four postulates, by...Ch. 15.3 - The fossil history of some kinds of modem...Ch. 15.3 - What Good Are Wisdom Teeth and Ostrich Wings?...Ch. 15.3 - Are a peacocks tail and a dogs tail homologous...
Ch. 15.3 - Between 70% and 85% of people will experience...Ch. 15.3 - describe the evidence that evolution has occurred?Ch. 15.3 - explain the difference between similarity due to...Ch. 15.3 - What Good Are Wisdom Teeth and Ostrich Wings? Just...Ch. 15.4 - To reduce the incidence of pesticide resistance,...Ch. 15.4 - describe some observations and experiments that...Ch. 15.4 - Some advocates of the view that all organisms were...Ch. 15 - Whale skeletons contain nonfunctional pelvic bones...Ch. 15 - Darwin was influenced by Malthuss thinking about...Ch. 15 - Prob. 3MCCh. 15 - Which of the following is not required for...Ch. 15 - Prob. 5MCCh. 15 - The flipper of a seal is homologous with the _____...Ch. 15 - Prob. 2FIBCh. 15 - Georges Cuvier espoused a concept called ______ to...Ch. 15 - Prob. 4FIBCh. 15 - Prob. 5FIBCh. 15 - Darwin's postulate 2 states that ______. The work...Ch. 15 - Prob. 1RQCh. 15 - Distinguish between catastrophism and...Ch. 15 - Describe Lamarcks theory of inheritance of...Ch. 15 - What is natural selection? Describe how natural...Ch. 15 - Describe how evolution occurs. In your...Ch. 15 - What is convergent evolution? Give an example.Ch. 15 - How do biochemistry and molecular genetics...Ch. 15 - In what sense are humans currently acting as...Ch. 15 - In discussions of untapped human potential, It is...Ch. 15 - Does evolution through natural selection produce...
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- No two people are genetically identical, except for identicaltwins. The main source of genetic variation among humans is(A) new mutations that occurred in the preceding generation.(B) genetic drift.(C) the reshuffling of alleles in sexual reproduction.(D) environmental effects.arrow_forwardDefine sexual selection?arrow_forwardWhy might natural selection act more strongly on traits that improve reproductive success early in life rather than later in life?arrow_forward
- What is the difference between natural selection and sexual selection?arrow_forwardSo how can individual selection result in low reproductive rates or short life spans?arrow_forwardWould you expect sexual selection to increase or decrease adaptation of a population to its environment? Do the pleiotropic effects and good genes mechanism for the evolution of female preferences differ in their implications for adaptation to the environment?arrow_forward
- Describe thoroughly the selective advantages and disadvantages organisms that reproduce sexually have over those that reproduce asexually, as well as the ramifications of mate choice on the traits present in species. The following questions could help answer the question above. What are the advantages of sexual reproduction? What are the disadvantages? How do traits selected by sexual selection and those selected by differential survival mix in an animal species? i.e. is it more important to mate or survive? Use specific examples to illustrate your point. Your answers should indicate an understanding of the mechanism behind natural selection. Propose a scenario where asexual reproduction would be favorable.arrow_forwardHow does sexual selection operate?arrow_forwardAssume you are studying a species of slug where the eggs are fertilized and transferred to the male. As a result the male is not able to increase reproductive success by mating with multiple partners. Therefore which of the following about sexual selection in this species is not true? Females are more likely to develop traits that signal genetic quality to males. Females will be able to increase reproductive success with increased mating partners. Sexual selection in males will lead them to be choosy with what females they mate with. Sexual selection in males will lead them to mate indiscriminately when they find a female.arrow_forward
- C) How might sexual selection lead to exaggerated morphology or behavior? (D) and how might natural selection affect the evolution of these exaggerated traits?arrow_forwardWhat are the similarities and differences between natural selection and selective breeding?arrow_forwardNursing bees take care of the queen and newly hatched bees. However, nursing bees themselves do not reproduce. How could natural selection act upon such behavior? Because this behavior does not directly benefit the nursing bee itself, it is not favored by natural selection. Because this behavior increases the number of surviving offspring that share genes with the nursing bee, it is favored by natural selection. Because this behavior selectively decreases the number of offspring harboring non-similar genes with the nursing bee, it is favored by natural selection. Because this behavior does not increase the number of surviving offspring that are identical in genes with the nursing bee, it is not favored by natural selection.arrow_forward
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