On%20November%2024,%201859,%20______________%20published%20On%20the%20Origin%20of%20Species%20by%20Means%20of%20Natural%20Selection.

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Chapter 16-17
Natural selection and evolution

• On November 24, 1859, ______________ published On
  the Origin of Species by Means of Natural
  Selection.
• Two major points
• Todays organisms descended from _______________.
• ___________ provided a mechanism for evolutionary
  change in populations.

Came to the conclusion that the Earth was very
old and constantly changing.
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• Darwins views were influenced by
• 1. ________ in sedimentary rocks.

Fig. 22.2
2. A 5-year voyage around the world
route of Beagle
EQUATOR
Fig. 22.4
Galapagos Islands
3. _________ theory of ____________________
earth processes are constant over time
4.Jean Baptiste __________1809 publication of a
theory of evolution based on his observations of
fossil chronologies in the Natural History
Museum of Paris.
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The Origin of Species challenged a worldview that
had been accepted for centuries

• The __________________ account suggests rapid
  creation, not evolution

• The Darwinian view of life has two main
  features.
• (1) The diverse forms of life have arisen by
  _______ _____________________ from
  ancestral species.
• (2) The _________ of modification has been
  _________ _________ working over enormous
  tracts of time.

4

• This evolutionary tree of the elephant family is
  based on evidence from fossils.

Fig. 22.7
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____________________ in easily observed

• ______________-resistance in insects
• _______________ resistance in humans

• 3TC-resistant strains of HIV become _______ of
  the population in just a few weeks.

• In each generation the percentage of resistant
  individuals _______________.

• __________ favors those characteristics in a
  variable population that fit the current, local
  _______________.

Natural selection does not ________ large-scale
evolution and speciation, only ______________
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Evolution is inferred
What is the evidence for evolution?

• 1. ___________________________
• For example, the forelimbs of human, cats,
  whales, and bats share the same skeletal
  elements, but different _____________

Fig. 22.14
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• 2. ___________________ in some creatures
• Example-some snake skeletons have vestiges of the
  pelvis and leg bones
• Fossil whales with vestigal legs and pelvis

3. ______________________
All vertebrates look the same as early embryos,
then changes are observed later.
4. All of life shares the same ________________
5. DNA sequences are more _______________in
like creatures than unlike ones
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6. The ___________ record Different organisms
appear at distinct times in the fossil record
But transition creatures are almost non-existent

• 7. Isolated places have distinct ________________
• There are numerous unique creatures on isolated
  islands- Australia, Galapagos islands,.
• Old World vs New World monkeys

How does one reconcile evolution with Genesis
account?

• Many scholars reject evolution theory outright.

• Others suggest vast periods of time between 1st
  and 2nd days of Genesis creation- .
• Others suggest God-directed evolution
  ____________evolution

Michael _______- suggests that life cannot just
happen, but is ________________________
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• ____________ experiment- Mix NH4, methane, water
  in intense heat and electrical current
• Observe simple ___________________ are formed
• Is this evidence for a ___________ soup forming
  resulting in an organism?

History suggests that our descendents will look
back at this generation and say
_________________________