Which of the following is true about natural selection? It can only act on traits that are heritable and show variation. It always favors large, strong individuals. It allows species to choose what adaptations are passed on to offspring. O It acts on individual organisms, helping them become better adapted to their environment.

Which of the following is true about natural selection? It can only act on traits that are heritable and show variation. It always favors large, strong individuals. It allows species to choose what adaptations are passed on to offspring. O It acts on individual organisms, helping them become better adapted to their environment.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 10TYU: Which of the following is not true of natural selection? (a) natural selection acts to preserve...

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Which of the following statements about natural selection is not true? O Natural selection operates according to differential reproductive success of individuals. O Natural selection usually predominates in small population only. O The cumulative effects of natural selection gives rise to individuals that can survive in a specific environment. O Natural selection results in evolution when individuals with higher survival and reproductive rates pass on these traits to their offspring.
Which of the following best describes natural selection? O It is a guess made by scientists about how life develops, but it has no hard evidence to support it. It is the idea that the strong survive and the weak die off. It is the idea that organisms with genetic traits that improve their ability to reproduce are more likely to pass those traits on to future generations. It is the idea that organisms naturally increase in complexity and intelligence with time.
Four of the five factors below support the mechanism of natural selection. In contrast, the fifth factor blocks natural selection from occurring. Which one of the factors listed below does NOT lead to natural selection, but instead stops it from occurring? O Characteristics are inherited - passed from parent to offspring. O Organisms in a population are identical to each other. O There is competition among organisms in a population. O More offspring are born than can survive. O Organisms in a population vary in characteristics that affect how well they survive and reproduce. o o oO
Which of the following is NOT one of the three features of evolution by natural selection? Offspring tend to resemble their parents because of heredity. O Individuals in populations show variation in their phenotypes. Organisms can induce the phenotypic changes they need to survive and reproduce in a given environment. O Some individuals survive and reproduce better than others, because of their phenotypes.
Which of the following is an example of a limitation on adaptation through natural selection? In a population of bacteria exposed to an antibiotic, there may be no individual with a resistance gene on which selection can act. O Bacteria reproduce very rapidly. Natural selection can only work to improve a species in the longer term and would not allow selection of something that would only have a short-term benefit. Mutations are very rare. Most animal populations have little genetic variation on which selection can act.
What type of selection favors one extreme phenotype leading to loss of genetic variation? Select one: O Directional O Disruptive O Balancing O Stabilizing O Adaptation Which of the following is true about natural selection? Select one: O Can generate totally new genetic material O Is directed toward a goal O Can lead to perfection O Is not the only process that leads to evolution O Changes Individuals
When considering synonymous and nonsynonymous mutations within a population, which of the following is TRUE? O Nonsynonymous mutations will more often be removed by purifying selection The two types of mutations are not distinguished by purifying selection O Synonymous mutations will more often be removed by purifying selection Only synonymous mutations are retained by natural selection O Only nonsynonymous mutations are retained over the course of evolution
Which of the following is NOT required in order for natural selection to occur in a population? O All of these are required for natural selection to occur O There is variation in phenotypes of individuals in the population O Individuals with some phenotypes produce more offspring than individuals with other phenotypes O Individuals in the population compete with one another for mates O Offspring inherit traits from their parents
Which of the following is true about natural selection? Select one: O Can generate totally new genetic material O Is directed toward a goal O Can lead to perfection O Is not the only process that leads to evolution O Changes Individuals
Which of the following statements is false? ONatural selection can alter a population's mean trait value O Natural selection usually decreases or maintains genetic variation Natural selection always favours rare genotypes O Natural selection acts on the phenotype
If variation in a trait is only due to environmental variation, and not genetic variation, how will directional natural selection change that trait value through time? [select one]: O Natural selection is likely to cause that trait to evolve Can't tell from information provided O That trait will be eliminated O Natural selection will not cause that trait to evolve
Which the following statements about Darwin's theory of natural selection is true? O In order to reproduce more successfully, an individual must evolve so that it adapts to its environment. The natural environment consistently causes variation of certain traits in the population. O Individuals with inherited traits that are better suited to the local environment are more likely to survive and reproduce than less well-suited individuals. Natural selection, by its cumulative effects over long periods of time, could have caused random changes in ancestral species, thus giving rise to two or more descendant species.