Download Ideas that shaped Darwin`s idea Slide One: James Hutton (1795

Ideas that shaped Darwin’s idea
Slide One:
 James Hutton (1795):
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Earth must be more than ______________________________________________
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______________________________________ shape the earth slowly, over millions of years
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Forces beneath earth’s surface are moving rocks upward
Slide Two:
 Charles Lyell (1833):
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___________________________________ occurring now have shaped earth’s features throughout history
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Scientists must explain past events using processes they can observe
Slide Three:
 Jean-Baptiste Lamarck (1809)
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One of first to recognize that _______________________________________________
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Organisms can __________________________________ throughout life by
______________________________________________
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These traits can be _____________________________________________
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Organisms strive for ________________________________________
HE WAS WRONG, BUT UNIQUE!!!
Slide Four:
Use and Disuse of Neck Muscles- Just Stretch A Little Further, Giraffe!
Slide Five:
 Thomas Malthus (1798):
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Growing ___________________________________ will overwhelm _____________________
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Darwin realized this applies even more to plants and animals that have tons of offspring!
Slide Six: CHARLES DARWIN
 Influenced by Charles Lyell who published “_________________________________________”.
 This publication led Darwin to realize that ___________________________________ gradually change Earth’s surface
and that the _____________________________________________________________________ in modern times.
Slide Seven:
 Darwin set sail on the _____________________________ (1831-1836) to survey the south seas (mainly South America
and the Galapagos Islands) to _______________________________________________.
 On the ______________________________________________________, Darwin observed species that lived no
where else in the world.
 These observations led Darwin to write a book.
Slide Eight:
 Wrote in 1859:“______________________________________________________________________________”
 Two main points:
1.
Species were __________________________________ in their ______________________________, but
___________________________________________________.
2.
Proposed a mechanism for evolution: __________________________________________________
EVOLUTION BASICS
Slide one: What is Evolution?
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Process by which today’s organisms have ___________________________________________________
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______________________ over time
Slide Two: How does evolution happen?
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By Natural Selection!
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Organisms _______________________________________________________________
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Organisms _______________________________________________ to environment are
________________________________________________________________________
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Certain traits are genetically passed on to future generations by survivors
Slide Three:
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Evolution by natural selection happens over millions of years
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Natural selection is not intentional!
Slide four: Natural Selection
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Charles Darwin first discovered Natural Selection on a trip to the Galapagos Islands in 1831
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Darwin collected specimens of plants and animals (he was a naturalist in England)
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Darwin found that the traits of organisms ____________________________________________________, and that
organisms had ______________________________________________________________________
Slide five: Adaption to Environment- Darwin’s Finches
Slide Six: Specifics of Natural Selection
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More organisms are ________________________ than can be
___________________________________________________________
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______________________________________________________ like:
Food, shelter, mates
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Organisms with highest _____________________________ will survive and reproduce
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Fitness is a result of ________________________________________________________
Slide Seven: Results of Natural Selection
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The _________________________ of the __________________________organisms are
_______________________________________
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Over time, the _______________________________________ and
____________________________________________________ of a population ___________________
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This leads to brand _______________________________________!
Homework:
Humans go extinct on Earth, except for a small group that rockets themselves to the
Planet Eastlake. Here are the conditions on Planet Eastlake:
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No books, weapons, or technology
No ozone layer to protect humans from the sun’s UV radiation
Native plants and animals exist that are adapted to the environment
Underground network of 3 foot high tunnels
Tunnels inhabited by giant, carnivorous rats
What will the humans inhabiting Planet Eastlake look like after 100,000 years? Draw a
picture and write a paragraph explaining why your humans have the traits you chose.