EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Textbook Question
Chapter 25, Problem 4S
Critique the argument that eyes have multiple evolutionary coons.
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Evolutionary biologist Neil Shubin once said, "In one sense, evolution didn't invent anything new? It's using the old to make the new, and we call that tinkering." How does the concept of the evolution of the complex eye and the idea of exaptations support Dr. Shubin's statement? Explain and give an example.
You want to distinguish between two hypotheses to explain the patterns you see:
1) Males not feeding the young is an adaptation to dimorphism
2) If males don't feed the young in a species, it will allow them to become brightly colored
To begin to address this question, map the characters changes in dimorphism and males feeding
the young onto each of the trees on the previous page.
CHARACTER
SEXUAL DIMORPHISM
MALES FEED YOUNG
Cassin's Vireo
No
No
Red Fox Sparrow
Cape May Warbler
Cedar Waxwing
Golden-Crowned Kinglet
Pyrrhuloxia
Yes
No
No
No
No
Yes
No
Yes
Yes
No
California Gull
No
Yes
Note: This data is fictional
5) Which of the hypotheses in part 4 is consistent with your analysis? Explain why in a brief paragraph.
Regarding the evolution of the mammalian inner ear, the above diagram shows:A) the co-option of jaw bones (colored) for use in hearingB) the loss of jaw bones (colored) and the origin of de-novo hearing bones C) the evolution of synapsids, which have little to do with mammalian evolutionD) the results of a population bottleneck which led to the fixation of odd alleles for ear development
Chapter 25 Solutions
EBK BIOLOGY
Ch. 25 - Heterochrony is a. the alteration of the spatial...Ch. 25 - Vast differences in the phenotypes of organisms as...Ch. 25 - Homoplastic structures a can Involve convergence...Ch. 25 - Hox genes are a. found in both plants and animals....Ch. 25 - The Brachyury and Thx5 in vertebrates and the Ap3...Ch. 25 - Which of the following statements about Pax6 is...Ch. 25 - Which of the following statements about TbxS is...Ch. 25 - Prob. 8UCh. 25 - Transcription factors are a. genes. b. sequences...Ch. 25 - Independently derived mutations of the CTC gene in...
Ch. 25 - Prob. 1ACh. 25 - Prob. 2ACh. 25 - The Eda allele that causes reduced armor...Ch. 25 - Prob. 4ACh. 25 - The paired-like homeodomain transcription factor 1...Ch. 25 - From the chapter on evolution of development it...Ch. 25 - Phenotypic diversity among major groups of...Ch. 25 - Critique the argument that eyes have multiple...Ch. 25 - Prob. 5SCh. 25 - Having read all of this chapter return to the clam...
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- Describe 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_forwardExplain the concept of natural selection using your moths as an example.arrow_forwardSomeone once said that if we could connect the auditory fibers coming from the cochlea (in the ear) to the visual cortex, and the visual fibers from the retina to the auditory cortex we would then see thunder and hear lightning. If this were the case what hypothesis would you use to explain these results? Question 1 options: Labeled line Population coding Auditory map Dissociationarrow_forward
- Explain the rationales behind ecological and social models of the evolution of primate cognitive abilities. References are the books "Primate Behavioral Ecology" by Karen Strier and "Planet Without Apes" by Craig Stanfordarrow_forwardDefine natural selection using the 5 points below to explain its role in understanding primate behavior. (1) there is variation among individuals; (2) some of that variation is heritable; (3) there is always competition between individuals for resources; (4) some variants outcompete other variants and leave more offspring; (5) to the extent that the parent's traits are heritable, then a larger portion of the next generation will reflect those traits.arrow_forwardThere are two main groups of bats: Smaller “microbats” navigate by using sonar, and larger “megabats” rely on vision. Mammalogists once though that both kinds of bats evolve from insectivorous mammals. But similarities between the visual systems of megabats and primates have led some researchers to think that megabats may have evolve from primates, perhaps lemurs. What results would support the hypothesis that the two groups of bats have a common origin? Separate origins?arrow_forward
- Refer back to Chapter 4 of your textbook, in the second paragraph in the section on mammals. Establish your clear understanding of Rechtschaffen’s statement, “If sleep does not serve an absolutely vital function then it is the biggest mistake the evolutionary process has ever made.” In your own words, explain what he meant. Please write 100-300 words. Remember not to plagiarize. There are no wrong answers so you do not need to check with me to find out if you are correct. I want to know your understanding of his statement.arrow_forwardTo develop: A hypothesis to explain the coloration in mice that live in sand dunes.arrow_forwardAnswer the following: This spectacular animal is a Lesser Bird of Paradise, Paradisea minor, from the highlands of Papua New Guinea. In the context of various evolutionary phenomena, why do you suppose: (a) This bird is confined to New Guinea and two nearby islands? Why would you not expect to find it in the mountains of Borneo? Explain in detail. (b) This spectacular tail presumably attracts predators; why hasn't natural selection acted to reduce it or camouflage it? Explain in detail.arrow_forward
- Make a detailed concept map: What are the 4 types of evidence for evolution? Explain and upload pictures.arrow_forwardExplain how natural selection can lead to adaptation.arrow_forwardEyes are often used in arguments for intelligent design because many consider this organ to be too complex to have evolved by chance alone. However, complex lensed eyes evolved independently both within cephalod mollusks and vertebrates including our own ancestor. In the evolution of these structures the corresponding phylogenies revealed that both: A) were preceded by the evolution of 'simple' light sensing eyes, thus having adaptive intermediate evolutionary steps. B) lacked intermediate evolutionary steps involving the evolution of 'simple' eyes. C) had intermediate evolutionary steps, but ultimately the vertebrate eye had a superior 'design' without any kind of blind spot, relative to the simple invertebrate cephalopod eye. D) were preceded by vestigial non-functional optic structures.arrow_forward
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