Download evolution

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript
DARWIN: 1831 Voyage of the HMS Beagle
OBSERVATIONS ABOARD HMS BEAGLE:
1. Species vary around the world
• What is a ‘species’?
2. Species vary locally
3. Species vary over time
• Fossils found in the Peruvian Andes
Darwin and Wallace:
NATURAL SELECTION SELECTS BASED ON:
PHENOTYPE!!!
The Peppered Moth
Color variants
During the Industrial Revolution
TODAY!
EVIDENCES FOR EVOLUTION:
1. Biogeography
Pangea
Embryos and Body Structure
Homologous Structures
Vestigial Structures:
Fossils:
Mold and Cast:
Carbon Film
Petrification (mineral replacement)
Amber
Mummification
Related documents