EBK BIOLOGY
10th Edition
ISBN: 8220100474729
Author: Martin
Publisher: Cengage Learning US
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Chapter 19, Problem 9TYU
Mutation (a) leads to adaptive evolutionary change (b) adds to the
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Unlike natural selection, is not related to an individual’s ability to survive and may result in offspring that are less well adapted to survive in a particular environment.
(a) genetic drift
(b) sexual selection
(c) directional selection
(d) convergent evolution
Charles Darwin proposed that evolution could be explained by the differential reproductive success of organisms that resulted from their naturally occurring variation. Darwin called this process (a) coevolution (b) convergent evolution(c) natural selection (d) artificial selection (e) homoplasy
a). define fitness in terms of an evolutionary term what does fitness mean?
b). by what process would analogous structures evolve so they look alike?
c). by what process would 2 related but geographically separated groups evolve similar adaptations independently.
Chapter 19 Solutions
EBK BIOLOGY
Ch. 19.1 - Define what is meant by a populations gene pool.Ch. 19.1 - Distinguish among genotype, phenotype, and allele...Ch. 19.1 - Prob. 1CCh. 19.1 - Can the frequencies of all genotypes in a...Ch. 19.1 - INTERPRET DATA In a human population of 1000, 840...Ch. 19.2 - Discuss the significance of the HardyWeinberg...Ch. 19.2 - Prob. 4LOCh. 19.2 - INTERPRET DATA In a population at genetic...Ch. 19.2 - INTERPRET DATA In a population at genetic...Ch. 19.2 - INTERPRET DATA The genotype frequencies of a...
Ch. 19.3 - Prob. 5LOCh. 19.3 - Discuss how each of the following...Ch. 19.3 - Distinguish among stabilizing selection,...Ch. 19.3 - Which microevolutionary force leads to adaptive...Ch. 19.3 - Why is mutation important to evolution if it is...Ch. 19.3 - Which microevolutionary forces are most associated...Ch. 19.3 - Prob. 4CCh. 19.4 - Prob. 8LOCh. 19.4 - Prob. 1CCh. 19.4 - Prob. 2CCh. 19.4 - How can researchers test the hypothesis that...Ch. 19 - The genetic description of an individual is its...Ch. 19 - In a diploid species, each individual possesses...Ch. 19 - The MN blood group is of interest to population...Ch. 19 - If a populations allele and genotype frequencies...Ch. 19 - Prob. 5TYUCh. 19 - The continued presence of the allele that causes...Ch. 19 - According to the HardyWeinberg principle, (a)...Ch. 19 - Prob. 8TYUCh. 19 - Mutation (a) leads to adaptive evolutionary change...Ch. 19 - Which of the following is not true of natural...Ch. 19 - If all copies of a given locus have the same...Ch. 19 - Prob. 12TYUCh. 19 - EVOLUTION LINK Given that mutations are almost...Ch. 19 - Prob. 14TYUCh. 19 - Prob. 15TYUCh. 19 - EVOLUTION LINK Evolution is sometimes...Ch. 19 - INTERPRET DATA The recessive allele that causes...Ch. 19 - PREDICT You study males in populations of a...Ch. 19 - Prob. 19TYU
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- The Hardy–Weinberg principle may be applicable if (a) the population size is small (b) migration occurs only at the beginning of the breeding season (c) mutations occur at a constant rate (d) matings occur exclusively between individuals of the same genotype (e) natural selection does not occurarrow_forwardNatural selection (a) leads to species being better adapted to their environment. (b) may lead to speciation if there is no gene flow between populations. (c) may lead to genetic divergence among populations in differing environments. (d) all of the above (e) none of the abovearrow_forwardWhich of the following is not true of natural selection?(a) natural selection acts to preserve favorable traits and eliminate unfavorable traits (b) the offspring of individuals that are better adapted to the environment will make up a larger proportion of the next generation (c) natural selection directs the course of evolution by preserving the traitsacquired during an individual’s lifetime (d) natural selection Test Your Understanding acts on a population’s genetic variability, which arisesthrough mutation (e) natural selection may result in changes in allele frequencies in a populationarrow_forward
- Evolution is based on which of the following concepts? (a) organisms share a common origin (b) over time, organisms have diverged from a common ancestor (c) an animal’s body parts can change over its lifetime, and these acquired changes are passed to the next generation (d) a and b (e) a, b, and carrow_forwardTraits that are inherited and improve an individual’s ability to survive and reproduce are called traits. (a) adaptive (b) polymorphic (c) biological (d) sympatric (e) allopatricarrow_forwardIndicate whether each statement presents an idea of Jean-Baptiste Lamarck, of Charles Darwin, or of Both Scientistarrow_forward
- In _______________ the selecting agent is the environment, whereas in _______________ the selecting agent is humans. (a) natural selection; convergent evolution (b) mutation; artificial selection (c) homoplasy; homology (d) artificial selection; natural selection (e) natural selection; artificial selectionarrow_forwardThe diversity of life is explained by the theory of evolution. Living things on Earth evolve by (1); that is, the selective survival of individuals of a species possessing a trait that increases their (2). Natural selection relies on the natural variations in a population of a species caused by (3).arrow_forwardEvolution is the accumulation of genetic changes within _______________ over time. (a) individuals (b) populations (c) communities (d) a and b (e) a and carrow_forward
- Natural selection occurs only if there is both (1) variation in the genetic information between organisms in a population and (2) variation in the expression of that genetic information—that is, trait variation—that leads to differences in performance among individuals. What kind of variation might exist in bioluminescing organisms, and what differences in performance might result? (Remember, evolution is a consequence of the interaction of four factors: (1) the potential for a species to increase in number, (2) the genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for an environment’s limited supply of the resources that individuals need in order to survive and reproduce, and (4) the ensuing proliferation of those organisms that are better able to survive and reproduce in that environment.)arrow_forwardMutations cause variations among individuals. If these variations provide an advantage to individuals, then the resulting traits are known as adaptations. Which of the following statements about adaptations is incorrect? A. They are structural or physiological in nature. B. They modify the behaviour of organisms. C. They provide a selective advantage in any environment. D .They increase reproductive success of organisms.arrow_forwardDON'T EXPLAIN, JUST GIVE THE ANSWER According to Charles Darwin, organic evolution is "descent with modification," which simply means Select one: A. inherited variations decline as reproductive potential is modified. B. characteristics acquired during the lifetime of an individual are passed on to all descendants of the individual. C. the fittest always impose change on the less fit. D. populations change over time.arrow_forward
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