Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 17.3, Problem 1TC
Make a list of events or processes that could cause geographic subdivision of a population. Do you think items on your list are sufficient to account for formation of the millions of species that have inhabited Earth?
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How can gene flow impact a population's allele frequencies? Choose one of the following:
By causing mutations in the DNA
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If a population meets all the criteria of the biological species concept, is it likely to meet the definition of a morphological species? Explain your answer.
Chapter 17 Solutions
Biology
Ch. 17.1 - One way to determine the number of species on...Ch. 17.1 - Prob. 1TCCh. 17.1 - The tiny frog paedophryne amauensis was discovered...Ch. 17.1 - describe how biologists define species and explain...Ch. 17.1 - describe the biological species concept and...Ch. 17.1 - list some reasons why it can be hard to tell...Ch. 17.2 - describe the main types of premating and...Ch. 17.2 - provide examples of each type of mechanism?Ch. 17.3 - Make a list of events or processes that could...Ch. 17.3 - How might conservation scientists use the map...
Ch. 17.3 - It is not surprising that the forests of New...Ch. 17.3 - Prob. 3TCCh. 17.3 - Prob. 4TCCh. 17.3 - Prob. 5TCCh. 17.3 - One possible explanation for the distinctive...Ch. 17.3 - describe the two general steps that are required...Ch. 17.3 - explain the difference between allopatric and...Ch. 17.3 - explain adaptive radiation and describe the...Ch. 17.3 - interpret an evolutionary tree diagram?Ch. 17.4 - If specialization puts a species at risk for...Ch. 17.4 - Prob. 1CTCh. 17.4 - describe the main causes of extinction?Ch. 17.4 - Prob. 2CYLCh. 17.4 - Given that genetic isolation is the first step in...Ch. 17 - The biological species concept is difficult or...Ch. 17 - Which of the following does not describe a...Ch. 17 - All instances of speciation require a. genetic...Ch. 17 - Analysis of Rhagoletis fly populations in North...Ch. 17 - In the initial phase of allopatric speciation,...Ch. 17 - A species is a group of ________ that evolves...Ch. 17 - Fill in the following with the appropriate...Ch. 17 - Formation of a new species occurs when two...Ch. 17 - The process by which many new species arise in a...Ch. 17 - A species may be at higher risk of extinction if...Ch. 17 - Define the following terms: species, speciation,...Ch. 17 - Many of the oak tree species in central and...Ch. 17 - Review the material on the possibility of...Ch. 17 - A drug called colchicine prevents cell division...Ch. 17 - What are the two major types of reproductive...Ch. 17 - It is difficult to perform experiments that test...
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- After reading the article '' Population structure and the evolution of Homo Sapiens in Africa''. What is the summary of this article?arrow_forwardThe founder effect is a type of (genetic drift / gene flow) in which individuals in one small group of a large population (establish a new distant population / are the only survivors) and then reproduce.arrow_forwardAfter reading the article'' Did our Species Evolve in Subdivided Populations across Africa, and Why Does It Matter? What is the summary of this article?arrow_forward
- What is Sympatric 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_forwardWhich areas or countries in South America have sparse populations? Why?arrow_forwardWhat is Macroevolution? A) The change of a population over several generations B) The history of a species from its origin C) The history of all populations and their descendantsarrow_forward
- What is the answer to this problem? I said the answer was "Homo sapiens populations interbred with the Denisovans before leaving Africa." and this was marked wrong.arrow_forwardFor the image attached did the moth population evolve? Explain. Is it micro or macroevolution?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
- Give typed explanation not written How can we measure gene flow between discrete populations? a. By estimating the proportion of individuals in the populations that are immigrants. b. By estimating the migration variance (σm2). c. By counting the number of offspring each individual has. d. By counting the number of connected populations.arrow_forwardWhat is gene flow defined as? Group of answer choices A-production of new alleles B-chance loss of alleles in a population C-exchange of genes between populations D-production of new genetic material E-differential reproductive success of individualsarrow_forwardWhat is genetic drift, gene flow and a population bottle neckarrow_forward
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