Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Textbook Question
Chapter 20, Problem 5TYU
The pupfishes in the Death Valley region are an example of which evolutionary process? (a) background extinction (b) allopatric
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Chapter 20 Solutions
Biology (MindTap Course List)
Ch. 20.1 - Describe the biological species concept and list...Ch. 20.1 - Prob. 1CCh. 20.1 - Prob. 2CCh. 20.1 - Prob. 3CCh. 20.2 - Explain the significance of reproductive isolating...Ch. 20.2 - What barriers prevent wood frogs and leopard frogs...Ch. 20.2 - How is temporal isolation different from...Ch. 20.2 - Prob. 3CCh. 20.2 - Of which postzygotic barrier is the mule an...Ch. 20.3 - Prob. 3LO
Ch. 20.3 - Explain the mechanisms of sympatric speciation and...Ch. 20.3 - What are five geographic barriers that might lead...Ch. 20.3 - Prob. 2CCh. 20.3 - Prob. 3CCh. 20.4 - Prob. 5LOCh. 20.4 - Prob. 1CCh. 20.5 - Define macroevolution.Ch. 20.5 - Discuss macroevolution in the context of novel...Ch. 20.5 - Prob. 8LOCh. 20.5 - Why are evolutionary novelties important to...Ch. 20.5 - Prob. 2CCh. 20.5 - Prob. 3CCh. 20.5 - What is the relationship between mass extinction...Ch. 20 - A prezygotic barrier prevents (a) the union of egg...Ch. 20 - The reproductive isolating mechanism in which two...Ch. 20 - Interspecific hybrids, if they survive, are (a)...Ch. 20 - The first step leading to allopatric speciation is...Ch. 20 - The pupfishes in the Death Valley region are an...Ch. 20 - Which of the following evolutionary processes is...Ch. 20 - According to the punctuated equilibrium model, (a)...Ch. 20 - The evolutionary conversion of reptilian scales...Ch. 20 - Adaptive radiation is common following a period of...Ch. 20 - The Hawaiian silverswords are an excellent example...Ch. 20 - VISUALIZE Use two different colors to depict the...Ch. 20 - Prob. 12TYUCh. 20 - EVOLUTION LINK Could hawthorn and apple maggot...Ch. 20 - Prob. 14TYUCh. 20 - EVOLUTION LINK Examine Figure 20-2c and predict...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What conditions make it likely that a small group of closely related species will increase to a large number of species by means of rapid speciation?arrow_forwardResearchers have found fossils of Eocene horse species in Colorado. Deeper deposits contain smaller species, and more recent deposits contain larger species. How does this observation support the theory of evolution? A. It provides evidence that species change over time. B. It does not support the theory of evolution. C. It shows that all species are related to each other. D. It proves that environments have changed over time. E. It suggests that species are unchanging and of recent origin.arrow_forwardWhat is Allopatric speciation? A) When a population is separated from the main group by a barrier and becomes a new species B) When a population mutates into a new species C) When a population develops into a new species without any physical barriers to isolate themarrow_forward
- In 1847, the German biologist Christian Bergmann noted that mammals and birds living at higher latitudes (farther from the equator) are on average larger and bulkier than related species found at lower latitudes. Suggest an evolutionary hypothesis to explain this observation.arrow_forwardWhy is extinction necessary for evolution to occur? Why can it be a creative force in speciation? Why don't we find more transitional fossils? Could both of these evolutionary process happen together? Explain.arrow_forwardWhen the isthmus of Panama (land bridge that connects north and south America) arose about 3 million years ago, it caused species of fish to diverge into sister species located in either the caribean or pacific ocean. Why did they form separate species? A) Because this is an example of sympatric speciation B) Because the tides are different on each side of the land bridge C) Because different predators in each ocean caused the populations to diverge D) Because the populations were reproductively isolatedarrow_forward
- Assume you are studying the fossil record of a certain lineage of sharks. You find that sharks in this lineage will maintain the same morphology for long periods of time and only rapidly change their morphology during a speciation event. The evidence you uncover is supportive of which of the following theories? a. Punctuated Equilibrium b. Gradualism c. Start and Stasis d. Increased Net Tempoarrow_forwardWhich of the following evidence is not consistent with the idea that evolution is responsible for the diversity of animals we see today? A. The presence of vestigial organs in extant species B. Structural homologies among very different animals C. Fossil records of intermediate life forms D. Earth is not the center of the galaxy or universe Which of the following is not a part of the allopatric speciation by natural selection model? A. Geographically isolated populations evolve or change in response to novel environments. B. Reproductive isolation evolves as a by-product of changes in other traits associated with adapting to new resources or environments. C. Selection against hybridization leads to exaggeration of signals to facilitate recognizing conspecifics( individuals of the same species). D. Changes among or between populations occur while populations are geographically separated. Which of the following is not an example of the evolution of a key innovation (anew trait)…arrow_forward. What is adaptive radiation? Explain it with the example of Darwin's finches.arrow_forward
- 20+ years ago, the view of paleontologist and paleoanthropologist on the human evolution is linear/step-ladder where in one specie first then become extinct and then new species came out. Is this true? Explain well and give examples.arrow_forwardDarwin theorized that all four of these finches evolved from one ancestor. Why do you think their beaks evolved?arrow_forwardWhich of the following best reflects a phylogenetic relationship between chimpanzees and baboons? A. They are grouped together because they live in similar habitats. B. They are grouped together because they have a common ancestor in recent history. C. They are grouped together because they both have an opposable thumb. D. They are grouped together because they both feed their young breast milk.arrow_forward
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