CAMPBELL BIOLOGY (LL) >CUSTOM PKG.<
17th Edition
ISBN: 9781323745618
Author: Central Texas
Publisher: PEARSON C
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Textbook Question
Chapter 23, Problem 1TYU
Natural selection changes allele frequencies because some _______________ survive and reproduce better than others.
(A) alleles
(B) loci
(C) species
(D) individuals
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A-gene flow
B-natural selection
C-genetic drift
D-mutation
Chapter 23 Solutions
CAMPBELL BIOLOGY (LL) >CUSTOM PKG.<
Ch. 23.1 - Explain why genetic Variation within a population...Ch. 23.1 - Ot all the mutations that occur in a population,...Ch. 23.1 - MAKE CONNECTIONS If a population stopped...Ch. 23.2 - A population has 700 individuals, 85 of genotype...Ch. 23.2 - The frequency of allele a is 0.45 for a population...Ch. 23.2 - WHAT IF? A locus that affects susceptibility to a...Ch. 23.3 - In what sense is natural selection more...Ch. 23.3 - Distinguish genetic draft from gene flow in terms...Ch. 23.3 - WH AT IF? Suppose two plant populations exchange...Ch. 23.4 - What is the relative fitness of a sterile mule?...
Ch. 23.4 - Explain why natural selection is the only...Ch. 23.4 - Prob. 3CCCh. 23 - Typically. most of the nucleotide variabillity...Ch. 23 - Is it circular reasoning to calculate p ond q from...Ch. 23 - Would two small, geographically isolated...Ch. 23 - How might secondary sex characteristics in males...Ch. 23 - Natural selection changes allele frequencies...Ch. 23 - Prob. 2TYUCh. 23 - Prob. 3TYUCh. 23 - There are 25 individuals in population 1, all with...Ch. 23 - Prob. 5TYUCh. 23 - EVOLUTION CONNECTION Using at least two examples,...Ch. 23 - SCIENTIFIC INQUIRY INTERPRET THE DATA Researchers...Ch. 23 - Prob. 8TYUCh. 23 - SYNTHESI2E YOUR KNOWLEDGE This kettle lake forracd...
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- What kind of variable traits other than fur or lack of within a population might natural selection act uponarrow_forwardHow do Genetic Variation, Competition & selection, and Inheritance each support natural selection? Use at least 1 example from the Beaks of Finches lab in your answer for each.arrow_forwardBiologists sometimes say that “natural selection depends on the specific environment where a species lives.” What does this statement mean? A) A) If populations of a species are in different environments, traits that individuals need to meet their needs in each environment will appear. B) Traits can be helpful or harmful. If populations of a species are in different environments, some traits that are helpful in one environment might be harmful in another environment. C) Traits are always either helpful or harmful, and the environment of a population doesn’t matter. If populations of a species are in different environments, the same traits will always be helpful. D) Species were formed to perfectly match their environment. The traits of individuals in a species depend on the specific environment in which they were created.arrow_forward
- Using evidence from the text, how did natural selection determine the survival of medeival humans during the black death( bubonic plague)? Please explain in 4 to 4 sentences Use the words: variation, natural selection, favorable traitsarrow_forwardDuring drought years on the Galapagos, small, easily eaten seeds become rare leaving only large, hard-cased seeds that only birds with large beaks can eat. If the drought persists for several years, then what should one expect to result from natural selection? Explain your reasoning based on the postulates of the Darvin natural selection theory.arrow_forwardIn your own words, how does Genetic Variation support natural selection? Use at least 1 example from the Beaks of Finches lab in your answer.arrow_forward
- Which colors are least represented, or absent, in the 2nd population? Use at least one buzzword (term) to explain why. Vocabulary terms: Natural Selection, Adaptation, Fitness, Genetic Diversity, Phenotype, Polymorphic, and Selective Pressurearrow_forwardHow can Darwin's finches explain natural selection and descent with modification? What is another example of natural selection and descent with modification? In both of your answers, you should describe the trait that was selected for/against and why this trait was an advantage/disadvantage. Plus, state how natural selection changed the population over time.arrow_forwardIn which of the following pairs do both evolutionary processes introduce new genetic variation into a population? a. natural selection and genetic drift b. mutation and gene flow c. natural selection and gene flow d. gene flow and genetic driftarrow_forward
- Which of the following situations will lead to natural selection? a. The seeds of two plants land near each other and one grows larger than the other. b. Two types of fish eat the same kind of food, and one is better able to gather food than the other. c. Male lions compete for the right to mate with females, with only one possible winner. d. all of the abovearrow_forwardWhich of the following is NOT a characteristic of natural selection? a) Variation exists among individuals in a population b) Some individuals are better adapted to their environment than others c) Organisms evolve to fit a predetermined goal or plan d) The better-adapted individuals are more likely to survive and reproducearrow_forwardWhich of the following is NOT an essential component of Darwin's theory of natural selection? a) natural selection results in a population that is adapted to its environment b) use or disuse of a structure causes changes that are passed onto the next generation c) more offspring are produced than the environment can support d)heritable variation exists in populationsarrow_forward
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