Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 16, Problem 4FIB
A random form of evolution is called ________. This form of evolution occurs more rapidly and has a greater effect in populations that are ________. Two Important causes of this form of evolution are ________ and ________. Which of these would apply to a population started by a breeding pair that was stranded on an island?
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Natural selection acts upon ____________________________, evolution upon _______________________________.
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If a version of a gene confers an advantage to survival and reproduction, that version of the gene will be favored by natural selection and we can expect the frequency of that gene to ______________________ within the population over time.
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The evolution of one species into two or more species as a result of different populations becoming reproductively isolated from each other is best termed as adaptive radiation. True or False.
The gene pool of the peppered moth population in England changed. As a result, the frequency of the black allele in the population increased, while the frequency of the white allele decreased.
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a
The white moths die more often compared to the black moths due to the random mutation in the lichen population.
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The white allele became less common as a result of sexual selection. Black moths reproduced more often due to the female preferring dark colors to light colors.
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Black soot from the burning of coal discolored the bark of local trees; black moths became more common because they blended in better, and survived to reproduce more often than white moths.
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Chapter 16 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 16.1 - define evolution in terms of concepts from...Ch. 16.1 - define equilibrium population and describe the...Ch. 16.2 - Evolution of a Menace The mutant alleles that...Ch. 16.2 - describe how mutation, gene flow, genetic drift,...Ch. 16.2 - A flu vaccination stimulates your immune system to...Ch. 16.2 - If it were true that mutations do occur in...Ch. 16.2 - Explain how the distribution of genotypes in...Ch. 16.2 - If a population grows large again after a...Ch. 16.2 - Prob. 4TCCh. 16.3 - describe why selection of phenotypes can affect...
Ch. 16.3 - A team of phys clans treated four patients with...Ch. 16.3 - If we studied a population of bighorn sheep and...Ch. 16.3 - explain how competition and predation influence...Ch. 16.3 - When selection is directional, is there any limit...Ch. 16.3 - Prob. 3CYLCh. 16.3 - Microbiologists have discovered that alleles...Ch. 16.3 - compare and contrast directional selection,...Ch. 16 - In North America, the average height of adult...Ch. 16 - The ______ provides a simple mathematical model...Ch. 16 - The alleles responsible for antibiotic resistance...Ch. 16 - What is a gene pool? How would you determine the...Ch. 16 - By the 1940s, the whooping crane population had...Ch. 16 - Different versions of the same gene are called...Ch. 16 - Stabilizing selection on a trait tends to a. make...Ch. 16 - Define equilibrium population. Outline the...Ch. 16 - An organisms ______ refers to the specific alleles...Ch. 16 - An adaptation is a. any trait that arises from a...Ch. 16 - How does population size affect the likelihood of...Ch. 16 - A random form of evolution is called ________....Ch. 16 - Which of the following statements about mutations...Ch. 16 - If you measured the allele frequencies of a gene...Ch. 16 - Competition is most Intense between members of...Ch. 16 - Genetic drift occurs a. when different phenotypes...Ch. 16 - People like to say that you cant prove a negative....Ch. 16 - The evolutionary fitness of an organism is...Ch. 16 - Describe the three ways in which natural selection...Ch. 16 - What is sexual selection? How is sexual selection...
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