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Transcript
10.1 Early Ideas About Evolution
Number your notebooks as far as you can in 5 mins
• Remember: Odd #s always on right side
• Write your name/period/McCobb/ C-1 on the front of your
book
• On Pg. 1 Write your:
– Edmodo code and pw
– OARs code and pw
Set
Cornell
NotesAbout
on pg. Evolution
10.1upEarly
Ideas
3
Early
Ideas About Evolution
2.110.1
Atoms,
Ions,
and Molecules
•Topic: 10.1 Early Ideas
About Evolution
•Essential Question:
1. Why are the ideas that
the Earth undergoes
change and is billions of
years old important for
evolutionary theory?
1. Why are the ideas that the
Earth undergoes change and
is billions of years old
important for evolutionary
theory?
10.1 Early Ideas About Evolution
Points to Ponder
• Have you ever heard the
expression of “survival of the
fittest”?
–What does it suggest to you?
10.1 Early Ideas About Evolution
KEY CONCEPT
There were theories of biological and geologic
change before Darwin.
10.1 Early Ideas About Evolution
EVOLUTION
• Evolution-is a process of biological change
by which descendants come to differ from
their ancestors
10.1 Early Ideas About Evolution
10.1 Early Ideas About Evolution
• A species is a group of organisms so similar to one
another that they can reproduce (have babies) and
have fertile offspring (babies who can have babies).
10.1 Early Ideas About Evolution
Early Ideas about Evolution (pg. 3)
Carolus
Linnaeus
• .
• .
• .
Georges Louis
Leclerc de Buffon
• .
• .
• .
Erasmus
Darwin
Jean-Baptiste
Lamarck
• .
• .
• .
• .
• .
• .
10.1 Early Ideas About Evolution
Carolus Linnaeus
• Swedish botanist
• Opened a classification system
for all types of organisms
– He grouped them by their
similarities
– System reflects evolutionary
relationships
10.1 Early Ideas About Evolution
Please classify these animals into groups based on their
similarities.
10.1 Early Ideas About Evolution
•
•
•
•
•
•
•
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Family: Hominidae
Genus: Homo
Species: Homo Sapiens
•
•
•
•
•
•
•
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Felidae
Genus: Felus
Species: Felus Catus
•
•
•
•
•
•
•
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Carnivora
Family: Canidae
Genus: Canis
Species: Canis Lupus
10.1 Early Ideas About Evolution
Georges Louis Leclerc de Buffon
• He proposed that species shared ancestors instead of
arising separately
• Rejected the idea that Earth was 6000 years old. He
suggested that it was much older
10.1 Early Ideas About Evolution
Erasmus Darwin
• Grandfather of Charles Darwin
• Proposed that all living things descended from a
common ancestor and that more-complex forms of life
arose from less complex forms of life
10.1 Early Ideas About Evolution
Jean-Baptiste Lamarck
• Proposed that all organisms evolved toward perfection
and complexity
• He did not think that species became extinct- He thought
they evolved into different forms
• Environmental change leads to use or disuse of a
structure
10.1 Early Ideas About Evolution
Theories of Geologic Change (pg. 2) (p.299 in book)
Georges
Cuvier
Catastrophism
• .
• .
• .
PICTURE
James Hutton
Gradualism
• .
• .
• .
PICTURE
Charles Lyell
Uniformitarianism
• .
• .
• .
PICTURE
10.1 Early Ideas About Evolution
There were three theories of geologic change.
1) Catastrophism- natural disasters have happened often
during Earth’s long history
• These events shaped landforms and caused species to go
extinct
Georges Cuvier
10.1 Early Ideas About Evolution
2) Gradualism-slow changes over a long period of time
The Colorado River carving
the Grand Canyon
James Hutton
10.1 Early Ideas About Evolution
–3) Uniformitarianism-Changes are uniform through time
and occur at a constant rate
Charles Lyell
10.1 Early Ideas About Evolution
10.1 Early Ideas About Evolution
• Uniformitarianism is the prevailing theory of
geologic change.