Essentials of Biology (5th International Edition)
5th Edition
ISBN: 9781259660269
Author: Sylvia S. Mader, Dr., Michael Windelspecht
Publisher: Mcgraw-Hill
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Textbook Question
Chapter 16, Problem 2BYB
What processes drive the evolution of new species? Are they different from those that drive the evolution of populations?
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How does natural selection lead to the evolution of new species?
According to Darwin’s model of evolution, evolution can only occur if there is some variation present among the individual members of a population. Which statement best describes the source of this variation among members of a species?
A) individuals will vary depending on geography and climate
B) variation exists because not all genes will be expressed
C) variation among individuals may arise as a result of mutations in the genetic code
D) variation exists because different individuals will have different access to food and other resources
According to Darwin’s model of evolution, evolution can only occur if there is some variation present among the individual members of a population. Which statement best describes the source of this variation among members of a species?
A) variation exists because different individuals will have different access to food and other resources
B) individuals will vary depending on geography and climate
C) variation exists because not all genes will be affected
D) variation among individuals may arise as a result of mutations in the genetic code
Chapter 16 Solutions
Essentials of Biology (5th International Edition)
Ch. 16.1 - Prob. 1LOCh. 16.1 - Prob. 2LOCh. 16.1 - 3. Contrast allopatric speciation with sympatric...Ch. 16.1 - Prob. 4LOCh. 16.1 - Prob. 1CYPCh. 16.1 - Prob. 2CYPCh. 16.1 - Prob. 3CYPCh. 16.1 - Prob. 4CYPCh. 16.1 - Prob. 5CYPCh. 16.1 - Prob. 1A
Ch. 16.1 - Prob. 2ACh. 16.1 - Prob. 3ACh. 16.1 - Prob. 4ACh. 16.1 - Prob. 5ACh. 16.1 - Prob. 6ACh. 16.1 - Prob. 7ACh. 16.1 - Prob. 8ACh. 16.1 - Prob. 9ACh. 16.1 - Prob. 10ACh. 16.2 - Understand how the geological timescale reflects...Ch. 16.2 - Contrast the gradualistic model of evolution with...Ch. 16.2 - Prob. 3LOCh. 16.2 - Prob. 1CYPCh. 16.2 - Prob. 2CYPCh. 16.2 - Prob. 3CYPCh. 16.2 - Prob. 11ACh. 16.2 - Prob. 12ACh. 16.3 - Prob. 1LOCh. 16.3 - Prob. 2LOCh. 16.3 - Prob. 3LOCh. 16.3 - Prob. 4LOCh. 16.3 - Prob. 5LOCh. 16.3 - Prob. 1CYPCh. 16.3 - Prob. 2CYPCh. 16.3 - Prob. 3CYPCh. 16.3 - Prob. 4CYPCh. 16.3 - Prob. 13ACh. 16.3 - Prob. 14ACh. 16.3 - Prob. 15ACh. 16 - Prob. 1BYBCh. 16 - What processes drive the evolution of new species?...Ch. 16 - Prob. 3BYBCh. 16 - Prob. S14.2BYBCh. 16 - Prob. S15.1BYBCh. 16 - Prob. S15.2BYBCh. 16 - Prob. 1TCCh. 16 - The Hawaiian Islands are located thousands of...Ch. 16 - Prob. 3TC
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- How does natural selection lead to the formation of new species?arrow_forwardIn what ways does evolution depend on transfer of information? In what ways does transfer of information depend on evolution?arrow_forwardWhich of the following decreases genetic variation in a population? a)natural selection b)mutation c)gene flow d)meiosis e) A and C only (Option E is said to be incorrect)arrow_forward
- How does Natural Selection cause evolution of a species?arrow_forward1 a) Which of the following statements is true about evolution? i) populations are selected but phenotypes evolve? ii) individuals are selected but populations evolve iii) none of the statements are true iv) genotypes are selected but individuals evolve? 1 b) Which genotype best describes "fitness"? i) it causes changes to organisms over time ii) it reduces an organism's chances of survival and reproduction iii) it allows an organism to exist in any environment iv) it increases an organisms chances of survival and reproduction 1 c) In order for allopatric speciation to occur, what mechanism of evolution must be prevented from happening? i) gene flow ii)sexual selection iii)genetic drift iv) mutationarrow_forwardWhat is meant by a mechanism of evolution?arrow_forward
- Even though Hardy and Weinburg showed that the process of random reproduction will not alter gene frequency in a population over time, in wild populations we observe that gene frequencies do change overtime so what has happened? A) sexual selection B) Evolution due to sexual selection C) none of these D) any of these E) Evolution due to genetic driftarrow_forwardHow do advantageous traits lead to evolution? Put the steps in the proper order. advantageous trait → survival of the fittest → natural selection → differential reproduction → evolution advantageous trait → survival of the fittest→ differential reproduction → natural selection → evolution advantageous trait → differential reproduction → survival of the fittest → natural selection → evolution advantageous trait → natural selection → survival of the fittest → differential reproduction → evolutionarrow_forwardWhich statement illustrates the connection between natural selection and overreproduction of a population? a) populations vary in their inherited traits. b) species produce more offspring than can survive in the environment. c) individuals with inherited traits that promote survival tend to have more surviving offspring. d) individuals with traits that do not enhance survival cannot reproduce.arrow_forward
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