BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 21.5, Problem 1LO
Explain the evolutionary significance of homologous and vestigial structures
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Chapter 21 Solutions
BIOLOGY
Ch. 21.1 - Prob. 1LOCh. 21.1 - Prob. 2LOCh. 21.2 - Prob. 1LOCh. 21.2 - Distinguish between demonstrating that evolution...Ch. 21.3 - Contrast the processes of artificial and natural...Ch. 21.3 - Prob. 2LOCh. 21.4 - Prob. 1LOCh. 21.4 - Prob. 2LOCh. 21.4 - Prob. 3LOCh. 21.5 - Explain the evolutionary significance of...
Ch. 21.5 - Prob. 2LOCh. 21.6 - Prob. 1LOCh. 21.6 - Prob. 2LOCh. 21.7 - Characterize the criticisms of evolutionary theory...Ch. 21.7 - Prob. 2LOCh. 21 - Suppose that a male with a beak depth of 10 mm...Ch. 21 - Prob. 1IQCh. 21 - Prob. 2IQCh. 21 - Prob. 3IQCh. 21 - Why might the evolutionary line leading to...Ch. 21 - Artificial selection is different from natural...Ch. 21 - Gaps in the fossil record a. demonstrate our...Ch. 21 - The evolution of modern horses (Equus) is best...Ch. 21 - Homologous structures a. are structures in two or...Ch. 21 - Convergent evolution a. is an example of...Ch. 21 - Prob. 6UCh. 21 - The possession of fine fur in 5-month human...Ch. 21 - In Darwins finches, a. occurrence of wet and dry...Ch. 21 - Prob. 2ACh. 21 - Convergent evolution is often seen among species...Ch. 21 - What conditions are necessary for evolution by...Ch. 21 - Explain how data shown in figure 21.2a and b...Ch. 21 - Prob. 3SCh. 21 - Refer to figure 21.5, artificial selection in the...Ch. 21 - The ancestor of horses was a small, many-toed...
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- 14. TRUE OR FALSE: Vestigial structures may or may not have any function in modern organisms.arrow_forwardDescribe how changes in the ladybugs'environment may influence their survival and/or reproduction. Make sure to use the vocabulary terms adaptation, natural selection, and polymorphic.arrow_forward1 page: Describe the radiation in vertebrate forms from phylotypic stage by focusing on three groups of vertebrates and then tracing the development of several homologous features in each group. Connect specific embryological structures in the phylotypic stage to divergent morphological structures in the adults of each of these groups.arrow_forward
- of this =rab or ditions ionary escen- se or 5. Describe two examples of vestigial structures that you can find among the Caminalcules. These are structures that have been reduced to the point that they are virtually useless. Ear muscles and the tail bones are examples of vestigial structures in our own species. Explain how vestigial structures provide clues about a species' evolutionary past. Illustrate your argument with vestigial structures found in humans or other real species.arrow_forwardEVOLUTION LINK What is the common ground between evolutionary biologists and developmental biologists who have adopted the perspective known as Evo Devo?arrow_forward1. Contrast homology and analogy. Give an example of homoplasy. 2. Discuss adaptation and preadaptation. 3. Compare and contrast divergent, convergent, parallel, and organic evolution. 4. What is a vestigial structure? A rudimentary structure? 5. Describe heterochrony – specifically paedogenesis, neoteny, and paedomorphosis.arrow_forward
- explain how chromosome behaviour during sexual reproduction in animals ensures perpetuation of parental traits in offspring and, at the same time, gentetic variation among offspring.arrow_forwardExplain into details the concept of speciation .arrow_forwardSome organisms have features that have different functions, but similar structures. One example is the forelimb of humans, dogs, birds, and whales. Human Dog Bird Whale What term best describes the relationship between these forelimbs? They are vestigial. O They are homologous. They are embryological. They are analogous.arrow_forward
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