Broccoli, cabbages and brussels sprouts all descend from the same wild mustard seeds and can still interbreed. These varieties were produced by
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Artificial Selection
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Which of the following best expresses the concept of natural selection
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Differential reproductive success based on inherited characteristics
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Which of the following assumptions or observations is not part of Darwin's idea of natural selection
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Whether an organism survives and reproduces is almost entirely a matter of random chance
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Which of the following statement regarding natural selection is false
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NS starts wirh the creation of new alleles that are directed that are directed at improving an organism's fitness
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Which of the following would prevent an organism from becoming part of the fossil record when it dies
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It is fully decomposed by bacteria and fungi
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Which of the following disciplines has found evidence based on the native distributions (locations) of living species?
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Biogeography
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Which of the following represents a pair of homologous structures?
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The wing of a bat and the flipper of a whale
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What evidence is used to determine the branching sequence of an evolutionary tree
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Anatomical or molecular homologus structures
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Darwin was the first person to draw an evolutionary tree, a diagram that represents
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Evidence based hypotheses regarding our understanding of patterns of evolutionary descent
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A population is
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A group of individuals of the same species that live in the same area and interbreed
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Microevolution or evolution at it's smallest scale, occurs when
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A population's allele frequencies change over a span of generations
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The ultimate source of all new alleles is
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Mutation
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The frequency of the homozygous do inant individuals in a population that is in Hardy-Weinberg equilibrium is equal to
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p2
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Which of the following terms respresents the frequency of heterozygotes in a population that is in a Hardy-Weinberg equilbrium?
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2pq
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Genetic drift resulting from a disaster that drastically reduces population size is called
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The bottleneck effect
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Which sentence best describes the true nature of natural selection
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Heritable traits that promote reproduction becone more frequent in a population from one generation to the next
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Which of the following will tend to produce adaptive changes in populations?
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Natural Selection
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Large antlers in male elk, which are used for battles between males are a good example of a tait favored
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Intrasexual selections
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Male attracting features such as a bright plumage of a male peacock result from
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Intersexual selection
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A woman struggling with a bacterial illness is prescribed a month's supply of a potent antibiotic. She takes it for two weeks and feels better. She she keep taking it
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She should continue taking the drug until her immune system can completely eliminate the infection
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Which of the following best expresses the concept of NS?
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Differential reproductive success based on inherited characteristics
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Which of the following statements regarding NS is false?
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Natural Selection starts with creation of new alleles that are directed toward improving an organism's fitness
question
A population is
answer
A group of individual of the same species that live in the same area and interbreed
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Micro evolution or evolution at the smallest scale occurs when
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A populations allele frequencies Change over a span of generations
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The ultimate source of all new alles
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Mutation
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The frequency of homozygous dominant individuals in a population that is Hardy-Weinberg equilibrium is equal to
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P2
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Genetic differences between populations tend to be reduced by
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Gene flow
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A rabbit population consists of animals that are either very dark on too or very light on top. The color pattern is not related to the sex. No rabbit shows intermediate coloration (medium darkness). The pattern might result from
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Disruptive selection
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Frequency-dependent selection, as seen in the case of the scale-eating fish in Lake Tanga Yuma tend to
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Maintain two phenotypes in a dynamic equilibrium in a population
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Which of the following assumptions or observations is not part of Darwin's idea of natural selection?
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Whether an organism survives and reproduces is almost entirely a matter of random chance
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