Chapter 7 The Evolution of Living Things

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Chapter 7The Evolution of Living Things
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A hereditary characteristic that helps an
organism survive and reproduce in its environment
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Adaptation

• A hereditary characteristic that helps an
  organism survive and reproduce in its environment

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The most specific of the seven levels of
classification characterized by a group of
organisms that can mate with one another to
produce fertile offspring
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Species

• The most specific of the seven levels of
  classification characterized by a group of
  organisms that can mate with one another to
  produce fertile offspring

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The process by which populations accumulate
inherited changes over time
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Evolution

• The process by which populations accumulate
  inherited changes over time

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The solidified remains or imprints of once-living
organisms
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Fossil

• The solidified remains or imprints of once-living
  organisms

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A historical sequence of life indicated by
fossils found in layers of the Earths crust
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Fossil record

• A historical sequence of life indicated by
  fossils found in layers of the Earths crust

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The remnant of a once-useful anatomical structure
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Vestigial Structure

• The remnant of a once-useful anatomical structure

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Distinguishing qualities that can be passed from
one generation to another
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Trait

• Distinguishing qualities that can be passed from
  one generation to another

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Breeding of organisms that have a certain desired
trait
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Selective breeding

• Breeding of organisms that have a certain desired
  trait

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The process by which organisms with favorable
traits survive and reproduce at a higher rate
than organisms without the favorable trait
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Natural Selection

• The process by which organisms with favorable
  traits survive and reproduce at a higher rate
  than organisms without the favorable trait

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A change in the order of the bases in an
organisms DNA deletion, insertion or
substitution
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Mutation

• A change in the order of the bases in an
  organisms DNA deletion, insertion or
  substitution

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The period between the birth of one generation
and the birth of the next generation
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Generation Time

• The period between the birth of one generation
  and the birth of the next generation

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The process by which two populations of the same
species become so different that they can no
longer interbreed
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Speciation

• The process by which two populations of the same
  species become so different that they can no
  longer interbreed

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