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The name for heritable traits that provide benefit and advantage for each individual in a population to survive and reproduce are


A) polymorphisms.
B) alleles.
C) adaptations.
D) genotypes.
E) superpositions.

F) B) and D)
G) B) and E)

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The chance that a mutation will occur is independent of whether a new phenotype will benefit a population.

A) True
B) False

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A cigarette smoker with lung cancer will not pass any smoking-induced lung cancer mutations to his children because the smoking-induced mutations


A) are not in DNA.
B) do not affect the phenotype of the lung cells.
C) are in somatic cells.
D) are in germ cells.
E) are in gametes.

F) B) and D)
G) B) and E)

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In the Hardy-Weinberg equation,p2 + 2pq + q2 = 1.If the dominant allele frequency is 0.8,what percent of the population will be homozygous recessive?


A) 0.40
B) 0.64
C) 0.16
D) 0.04
E) 0.32

F) A) and B)
G) A) and C)

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D

Sexually dimorphic features do not include


A) None of the answer choices are sexually dimorphic features.
B) antlers.
C) intelligence.
D) body size.
E) colored plumage.

F) A) and B)
G) None of the above

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The scientist,___,proposed catastrophism and the principle of superposition after observing ___


A) Charles Darwin; variability in populations of island and continental populations.
B) James Hutton; anatomical differences observed to be caused by variable use of parts of their bodies.
C) Georges-Louis Buffon; the similarities and differences among closely related species.
D) Charles Lyell; observed genetic patterns of inheritance among plants and animals.
E) Georges Cuvier; interruptions and fossil similaries in the fossil record.

F) A) and B)
G) A) and C)

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Darwin's theory was strongly founded on the geographic distances travelled by migrating species,or occupied by their populations.A theory of "Island Biogeography" was introduced in 1967,further elaborating on importance of the distances travelled,or areas occupied by populations.A specialized field of "Landscape Ecology" concerns patches of habitat,and distances between them,along with movement corridors,or barriers to movement.With all of these,the individuals that move about and successfully reproduce in the population


A) demonstrate gene flow that can counteract trends in selection and other allele frequency changes.
B) can be blocked by human construction of cities, or modification of vast landscapes for agriculture.
C) can be aided by human construction of artificial corridors of movement, such as rails and roadways.
D) All of the answer options are correct as possibilities for different species.
E) can reunite smaller groups of the species population that were previously isolated.

F) B) and D)
G) C) and D)

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Genetic change in a population from generation to generation defines which of the following?


A) heredity
B) evolution
C) mitosis
D) phenotype
E) genotype

F) A) and B)
G) A) and C)

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The few ancestors of the Galàpagos finches who colonized the islands would be an example of


A) founder effect.
B) increased mutation rate.
C) a bottleneck.
D) gene flow.
E) natural selection.

F) A) and B)
G) A) and C)

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A

Ancestors of the Galàpagos finches had two different types of seeds to eat on some islands.Some seeds were very small,and required small beaks to handle,other seeds were very large and required large strong beaks to crack.This led to ____ among the Galàpagos finches.


A) sexual selection
B) stabilizing selection
C) directional selection
D) disruptive selection
E) artificial selection

F) D) and E)
G) A) and C)

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Natural selection is random because no individuals are eliminated from reproducing due to different environments.

A) True
B) False

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Evolution occurs in individuals,not populations.

A) True
B) False

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A population declines when


A) reproductive rate exceeds death rate.
B) smaller animals are selectively removed.
C) reproductive and death rates are equal.
D) animals are removed randomly.
E) death rate exceeds reproductive rate.

F) A) and D)
G) All of the above

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Sexual selection is a type of natural selection resulting from variation in the ability to obtain mates.

A) True
B) False

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When Conover and Munch harvested small fish,large fish,or random sizes of fish,what hypothesis were they testing?


A) that slot limits would decrease the size of fish in future generations
B) that harvesting larger fish would increase the size of fish in future generations
C) that harvesting larger fish would decrease the size of fish in future generations
D) that harvesting fish randomly would decrease the size of fish in future generations
E) that harvesting fish randomly would increase the size of fish in future generations

F) B) and E)
G) B) and D)

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In the Hardy-Weinberg equation,p + q = 1,p and q represent the frequency of alleles in a population of diploid organisms if


A) only two alleles exist for that gene.
B) the trait is polygenic.
C) only one allele exists for that gene.
D) two or more genes are needed to express a trait.
E) two or more alleles exist for that gene.

F) B) and C)
G) A) and C)

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The relatively short-term changes in allele frequencies within a population is


A) fitness.
B) adaptation.
C) microevolution.
D) convergent evolution.
E) natural selection.

F) A) and B)
G) C) and D)

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C

A gradual change in an organism,from an ancestral type was referred to by Darwin as


A) an adaptation.
B) descent with modification.
C) natural selection.
D) convergent evolution.
E) artificial selection.

F) B) and C)
G) C) and D)

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On a biology field trip near campus,you observe layers of volcanic rock,eroded mountain rocks,and even rocks apparently formed near an ocean coast.Fossils found in the different rock layers have diverse body forms,for living on land,or in the sea,or other habitats.This set of observations tends to support


A) limits to the fossil organism populations, as proposed by Malthus.
B) microevolution of the organisms, as the environment changed.
C) uniformitarianism, as proposed by Hutton.
D) catastrophism, as proposed by Cuvier.

E) A) and B)
F) A) and C)

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The French naturalist,who in 1749 became one of the first scientists to suggest that closely related species arose from a common ancestor and were changing,was


A) Georges-Louis Buffon.
B) Georges Cuvier.
C) James Hutton.
D) Charles Darwin.
E) Charles Lyell.

F) B) and D)
G) D) and E)

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