Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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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: Life on Earth with Physiology (11th Edition)
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 - CONSIDER THIS Some advocates of the view that all...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_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_forwardDescribe 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_forward
- Assume 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_forwardIn the context of the runaway sexual selection hypothesis, what role does female mate choice play in the evolution of exaggerated traits in males? Females ignore males with exaggerated traits in favor of other factors such as resources Females display exaggerated traits themselves to attract males with similar traits Females have no preference for males with exaggerated traits Females actively select mates with these traits, leading to their exaggerated developmentarrow_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
- The continued evolutionary exaggeration, across generations, of a sexual display trait (e.g., a trait used by males in attracting mates, like the peacock's tail) is most likely due to: a) stabilizing fecundity selection O b) directional sexual selection c) genetic drift d) heterozygote advantage e) directional viability selectionarrow_forwardNatural selection and artificial selection or selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. Changes in genetic traits have occurred over generations through both natural selection and selective breeding although the occur through different means. What characterizes only artificial selection? Choose all that apply. A) chickens that lay larger eggs are favored B) selection increases the chances of surviving C) selection make a species stronger and fit for survival D) selection favors the desired characters in the new organismsarrow_forwardWhat does the Hardy Weinberg equation do? A) Show if a population is evolving B) Shows how many dominant alleles there are C) Does not work with asexual reproductionarrow_forward
- Phalaropes are shore birds with brightly colored females and dull colored males. Females are larger than males and compete with each other for access to males. Considering sexual selection theory, select the idea(s) below that seem(s) most plausible in light of the pattern of sexual dimorphism? Pick all that apply This is a picture of a brightly colored female: O Females incubate eggs and care for the young. Males incubate eggs and care for the young Males are choosy. males are not choosyarrow_forwardYou are raising a stock of Drosophila flies in which you have clipped off the wings of each individual. Assume that this treatment does not disrupt their mating success (it would). If you clip off the wings in each subsequent generation, what would you expect to observe in the 50th generation? Why? This is an example of whose ideas in evolution?arrow_forwardhow does sexual reproduction produce more complex offspring, produce a greater number of offspring, enhances the genetic variability, produce more evolutionary fit individual and Increases the survival rate of the species?arrow_forward
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