BIO 141 FINAL EXAM NEWEST / BIO 141 FINAL EXAM PREPARATION /BIO
141 FINAL EXAM PRACTICE EXAM WITH COMPLETE QUESTIONS AND
CORRECT ANSWERS| BRAND NEW VERSION!
Sometimes the most abundant color form of an animal is preyed upon more
extensively than less common forms. This illustrates the phenomenon of
a. stabilizing selection.
b. directional selection.
c. disruptive selection.
d. frequency dependent selection.
e. genetic drift. - Correct Answer-d. frequency dependent selection.
In frequency-dependent selection, highest mortality can be expected in
a. the most abundant genotype.
b. the least abundant genotype.
c. the least well-adapted genotype.
d. heterozygous genotypes.
e. homozygous recessive genotypes. - Correct Answer-a. the most abundant
genotype.
The contribution an individual makes to the gene pool of the next generation
relative to the contributions of other individuals is called
a. competition.
b. genetic drift.
c. relative fitness.
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d. gene flow.
e. mutation. - Correct Answer-c. relative fitness.
Natural selection results in
a. adaptation.
b. a mutation.
c. a new species.
d. genetic drift.
e. stabilizing selection. - Correct Answer-a. adaptation.
Evolution can be said to have taken place when
a. a population experiences a shift in allele frequencies.
b. a mutation occurs in a population.
c. several mutations occur in a population.
d. a feature of an individual animal changes through use or disuse.
e. a population has different forms of the same gene. - Correct Answer-a. a
population experiences a shift in allele frequencies.
What mechanism seemed to separate the "birds of paradise" in New Guinea?
a. chromosomal differences
b. different mating rituals
c. geographic isolation
d. interference from humans
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e. mechanical differences between species - Correct Answer-c. geographic
isolation
The habitats of "birds of paradise" in New Guinea are on mountains separated by
a. areas of unsuitable land.
b. fierce predators.
c. man-made borders.
d. the ocean.
e. rivers and lakes. - Correct Answer-a. areas of unsuitable land.
An example of the morphological species concept would be achieved by
a. doing a genetic analysis on the two organisms.
b. looking at the appearance of two organisms.
c. mating the two organisms to see if viable offspring result.
d. observing the mating rituals of the two organisms.
e. tracing the common ancestry of the two organisms. - Correct Answer-b. looking
at the appearance of two organisms.
The biological species concept relies primarily on the ability of individuals within
the species to
a. adapt to the environment.
b. have greater longevity.
c. intermingle with other species.
d. live in a variety of habitats.
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e. produce fertile offspring when mating with one another. - Correct Answer-e.
produce fertile offspring when mating with one another.
According to the biological species concept, members of the same species look
alike primarily because they
a. live in the same environment
b. experience gene flow, which mixes their genetic material
c. have a common ancestor
d. have stopped evolving
e. are adapted to the same life style - Correct Answer-b. experience gene flow,
which mixes their genetic material
The concept for examining speciation by reconstructing the evolutionary tree is
the
a. biological species concept.
b. examination of ring species.
c. examination of clinal variation.
d. morphological species concept.
e. phylogenetic species concept. - Correct Answer-e. phylogenetic species
concept.
Gene flow between organisms of ring species occurs
a. between any of the organisms if they are placed in the same environment.
b. freely.
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