Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 47, Problem 6RQ
An adaptive radiation is.__________
- a burst of
speciation - a healthy level of UV radiation
- a hypothesized cause of a mass extinction
- evidence of an asteroid impact
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Make or create one question about Speciation and ecology (Nature of species, reproductiva isolation, genetic drift and natural selection, geography of speciation, adaptive radiation and biological diversity, the peace of evolution). Just one question about any of this topics.
An adaptive radiation is________. a. a burst of speciation b. a healthy level of UV radiation c. a hypothesized cause of a mass extinction d. evidence of an asteroid impact
Chapter 47 Solutions
Biology 2e
Ch. 47 - Figure 47.6 Scientists measured the relative...Ch. 47 - Figure 47.9 The Svalbard Global Seed Vault is...Ch. 47 - Converting a prairie to a farm field is an example...Ch. 47 - Figure 47.16 Which of the following statements is...Ch. 47 - With an extinction rate of 100 E/MSY and an...Ch. 47 - An adaptive radiation is.__________ a burst of...Ch. 47 - The number of currently described species on the...Ch. 47 - A mass extinction is defined as. a loss of 95...Ch. 47 - A secondary plant compound might be used for which...Ch. 47 - Pollination is an example of_____________ a...
Ch. 47 - What is an ecosystem service that performs the...Ch. 47 - Which two extinction risks may be a direct result...Ch. 47 - Exotic species are especially threatening to what...Ch. 47 - Certain parrot species cannot be brought to the...Ch. 47 - What was the name of the first international...Ch. 47 - About what percentage of land on the planet is set...Ch. 47 - Describe the evidence for the cause of the...Ch. 47 - Describe the two methods used to calculate...Ch. 47 - Explain how biodiversity loss can impact crop...Ch. 47 - Describe two types of compounds from living things...Ch. 47 - Describe the mechanisms by which human population...Ch. 47 - Explain what extinction threats a frog living on a...Ch. 47 - Describe two considerations in conservation...Ch. 47 - Describe what happens to an ecosystem when...
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- When a new habitat is first exploited by a species, we expect to see rapid diversification of many new species. This is called • punctuated equilibria • adaptive radiation•explosive adaptation• mass speciationarrow_forwardAdaptive radiations can be a direct consequence of three of the following four factors. Select the factor that is NOT a direct consequence of adaptive radiation. Select one: a. Genetic drift b. Vacant ecological niches (niches are environment "space" where a particular organism has resources required to survive and reproduce) c. New evolutionary innovations d. Colonization of a new region that contains suitable habitat and few competitor speciesarrow_forwardBefore humans began altering the natural world. The number of species on earth remain stable through geological time true or false,arrow_forward
- Which of the following terms most specifically describes what occurs when a group of organisms expands to take on new ecological roles, forming new species and higher taxonomic groups in the process? (a) speciation (b) mass extinction (c) evolution (d) adaptive radiationarrow_forwardThe average speciation rate minus the average extinction rate is which of the following? a. Mode of evolution b. Net diversification rate c. Tempo of evolution d. Speciation with gene flowarrow_forwardThe number of currently described species on the planet is about ________. a. 17,000 b. 150,000 c. 1.5 million d. 10 millionarrow_forward
- The fossil record (a) usually occurs in sedimentary rock (b) sometimes appears fragmentary (c) is relatively complete for tropical rainforest organisms but incomplete for aquatic organisms (d) a and b (e) a, b, and carrow_forwarda. Name an example of an adaptive radiation b. Briefly describe what happened during the radiation and provide a likely explanation for why it occurred A very miminal explanation for both questions is all I ask for. Doesn't have to be long.arrow_forwardWhich of the following is believed to be common among all mass extinction events? the type of event that causes the extinction the number of species that went extinct a significant change in the global climate the type of species that went extinctarrow_forward
- Define each in two short sentences Allopatric speciation Sympatric speciation Adaptive radiation Convergent evolution Analogous Homologousarrow_forwardWhat is adaptive Radiation It is when radiation cause mutations It is when animals adapted to solar radiation It is when a species rapidly adapts to many new and open environmentsarrow_forwardWhich one of the following statements is not true? Speciation is the process of creating new species There have been five mass extinctions preserved in the fossil record All living things can be classified into one of four taxonomic domains Some bacteria are autotrophs Current rates of extinction are higher than background extinction ratesarrow_forward
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