POB EXAM 3 UARK LATEST
SHADWICK
who evolves - ANSWERS-populations
Hardy Weinberg Equilibrium - ANSWERS-No mutations, No genetic
drift, No gene flow, No natural selection, Random Mating
Mutation - ANSWERS-cause allele frequency in a populations, only
source of variation, random events
Genetic Drift - ANSWERS-causes allele frequency to fluctuate; greater
in smaller populations
Bottleneck Effect - ANSWERS-catastrophe kills large amount of people,
loss of genetic diversity; recessive alleles become more present
Gene Flow - ANSWERS-movement of alleles between populations;
mixes genetic diversity in a populations; makes two pools or more
similar populations similar
Random Mating - ANSWERS-individuals do not choose mates, never
observed in natural population
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1
, POB EXAM 3 UARK LATEST
SHADWICK
Natural Selection - ANSWERS-heritable variation, over-reproduction
causes competition and differ in reproductive success and fitness,
Adaptation
Natural Selection: Stabilizing Selection - ANSWERS-select against
extremes
Natural Selection: Directional selection - ANSWERS-one extreme is
favored
Natural Selection: Disruptive Selection - ANSWERS-both extremes
favored
Macroevolution - ANSWERS-speciation and divergence of life
Speciation - ANSWERS-group of organisms capable of interbreeding
Biological Evolution - ANSWERS-organisms change over time
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2
, POB EXAM 3 UARK LATEST
SHADWICK
Darwin - ANSWERS-Theory of Natural Selection (short necked giraffes
die and therefore, don't reproduce)
Lamarck - ANSWERS-Inheritance of Acquired Characteristics (giraffes
stretch their necks to reach food and then their offspring are born with
the longer neck)
Evidence of Evolution - ANSWERS-Fossils, Transitional Forms,
Analogous Structures, Homologous Structures, Vestigial Structures
Fossils - ANSWERS-hard body parts, embedded in sedimentary rock,
deposited in Strata
Mold - ANSWERS-air space remains
Cast - ANSWERS-Silica fills space
Transitional Form - ANSWERS-Whale: reduced hind limbs and pelvic
bones
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3
SHADWICK
who evolves - ANSWERS-populations
Hardy Weinberg Equilibrium - ANSWERS-No mutations, No genetic
drift, No gene flow, No natural selection, Random Mating
Mutation - ANSWERS-cause allele frequency in a populations, only
source of variation, random events
Genetic Drift - ANSWERS-causes allele frequency to fluctuate; greater
in smaller populations
Bottleneck Effect - ANSWERS-catastrophe kills large amount of people,
loss of genetic diversity; recessive alleles become more present
Gene Flow - ANSWERS-movement of alleles between populations;
mixes genetic diversity in a populations; makes two pools or more
similar populations similar
Random Mating - ANSWERS-individuals do not choose mates, never
observed in natural population
END OF
PAGE
1
, POB EXAM 3 UARK LATEST
SHADWICK
Natural Selection - ANSWERS-heritable variation, over-reproduction
causes competition and differ in reproductive success and fitness,
Adaptation
Natural Selection: Stabilizing Selection - ANSWERS-select against
extremes
Natural Selection: Directional selection - ANSWERS-one extreme is
favored
Natural Selection: Disruptive Selection - ANSWERS-both extremes
favored
Macroevolution - ANSWERS-speciation and divergence of life
Speciation - ANSWERS-group of organisms capable of interbreeding
Biological Evolution - ANSWERS-organisms change over time
END OF
PAGE
2
, POB EXAM 3 UARK LATEST
SHADWICK
Darwin - ANSWERS-Theory of Natural Selection (short necked giraffes
die and therefore, don't reproduce)
Lamarck - ANSWERS-Inheritance of Acquired Characteristics (giraffes
stretch their necks to reach food and then their offspring are born with
the longer neck)
Evidence of Evolution - ANSWERS-Fossils, Transitional Forms,
Analogous Structures, Homologous Structures, Vestigial Structures
Fossils - ANSWERS-hard body parts, embedded in sedimentary rock,
deposited in Strata
Mold - ANSWERS-air space remains
Cast - ANSWERS-Silica fills space
Transitional Form - ANSWERS-Whale: reduced hind limbs and pelvic
bones
END OF
PAGE
3
