Chapter 21 - The Evidence for Evolution Flashcards

1
Q

Evidence of Evolutionary Change by Natural Selection

A

Darwin’s Finches

Industrial Melanism

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2
Q

Artificial Selection

A
  • Domestication of plants and animals - modern day agriculture
  • Man can selectively breed plants and animals to exhibit certain characteristics
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3
Q

The Fossil Record

A
  • The fossil record is the most direct evidence of evolution

* Fossils document evolutionary transition

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4
Q

Relative dating

A

position - position of rocks

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5
Q

Absolute dating

A

isotopes - radioactive isotopes with longer half life

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6
Q

Anatomical Record

A
  • Homology - similar origin, different function
  • Embryonic Development
  • Vestigial structures - structures that serves no purpose, no use
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7
Q

Molecular Record

A

The more closely related organisms are, the more DNA they have in common - gene sequences

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8
Q

Convergent Evolution and Biogeography

A

Animals evolving under similar conditions will exhibit similar traits - nature is selecting for similar traits, biogeography - geographical distribution of plants and animals

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