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

10.1 Early Ideas About Evolution 2.1 Atoms, Ions, and Molecules Set up Cornell Notes on pg. 3 Topic: 10.1 Early Ideas About Evolution Essential Question: 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 2.1 Atoms, Ions, and Molecules Why are the ideas that the Earth undergoes change and is billions of years old important for evolutionary theory?

Have you ever heard the expression of “survival of the fittest”? Points to Ponder Have you ever heard the expression of “survival of the fittest”? What does it suggest to you?

KEY CONCEPT There were theories of biological and geologic change before Darwin.

EVOLUTION Evolution-is a process of biological change by which descendants come to differ from their ancestors

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).

Early Ideas about Evolution (pg. 3) Carolus Linnaeus Georges Louis Leclerc de Buffon Erasmus Darwin Jean-Baptiste Lamarck . . . .

Warm Up What Is Evolution? Define. Define Species. Name the theorists who propose the idea of evolution before Charles Darwin.

Carolus Linnaeus Swedish botanist Opened a classification system for all types of organisms He grouped them by their similarities System reflects evolutionary relationships

Please classify these animals into groups based on their similarities.

Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Family: Hominidae Genus: Homo Species: Homo Sapiens Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Canidae Genus: Canis Species: Canis Lupus Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Carnivora Family: Felidae Genus: Felus Species: Felus Catus

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

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

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

Theories of Geologic Change (pg. 2) (p.299 in book) Georges Cuvier James Hutton Charles Lyell Uniformitarianism . Gradualism . Catastrophism . PICTURE PICTURE PICTURE

There were three theories of geologic change. Catastrophism- natural disasters have happened often during Earth’s long history These events shaped landforms and caused species to go extinct Georges Cuvier

The Colorado River carving the Grand Canyon 2) Gradualism-slow changes over a long period of time The Colorado River carving the Grand Canyon James Hutton

3) Uniformitarianism-Changes are uniform through time and occur at a constant rate Charles Lyell

Uniformitarianism is the prevailing theory of geologic change.