Textbook Notes (367,823)
Canada (161,434)
Biology (655)
BIOLOGY 1M03 (199)
Ben Evans (64)
Chapter 13-14

BIOLOGY 1M03 Chapter 13-14: Chapter 13 and 14

3 Pages
Unlock Document

Ben Evans

CHAPTER 13: HOMOSAPIENSANDEVOLUTIONOFMODERNHUMANBEHAVIOR Morphological Features of Modern Homo sapiens • Large, round skull with high forehead • Small face and teeth • Protruding chin • Less robust postcranial skeleton • Long limbs The Origin & Spread of Modern Humans • Homo sapiens • evolved in Africa ~100,000- 200,000 years ago • Small population left Africa ~60,000 yrs ago • Populated Australia and the Americas • Interbred with Neanderthals and Denisovan The Origin and Spread of Modern Humans: Genetics Genetic tree • Interbred with Neanderthals and Denisovans • How do we know? Y chromosome ad mtDNA • Mutations accumulate over time: genetic trees • Map genes out to compare them Distribution • Provides knowledge of past, and future • Insert slide Diversity • Low genetic diversity o Indicated recent evolution o Descended from small population (12,000) Variation • Migrates, population growth, different frequency • Passage of individuals that change in the frequency • Less variation at the final Maps • The climate that affects the tundra • Out to areas that were warmer THE AFRICAN ARCHAELOGICAL RECORD FOR THE LATER PLEISTOCENE MODERN HUMAN BEHAVIOR Middle Stone Age (Modes 3–5) • Technological advances • Social organization: more humans create more hunting positions • Symbolic expression: higher levels of cultural expression (more evolved) Blades (Mode 4) • Useful for different prey items Microliths (Mode 5): Composite tools • spears • Throwing sticks • Hearted tools so it was easier to cut UPPER PALEOLITHIC TECHNOLOGY & CULTURE • Mode 4: blades • Tool diversity • Different raw materials • Variatio
More Less

Related notes for BIOLOGY 1M03

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.