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[SOCI 1P80] - Final Exam Guide - Ultimate 24 pages long Study Guide!


Department
Sociology
Course Code
SOCI 1P80
Professor
Lauren Corman
Study Guide
Final

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Brock U
SOCI 1P80
FINAL EXAM
STUDY GUIDE

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Human Evolution Wednesday, October 14, 2015
Origins
Earth is Third Rock from the Sun
Forms 4.5 billion years ago
Hostile ever-changing environment
Cyanobacteria (3 billion years ago)
Mutant cyanobacteria and the by-product of photosynthesis
Production of oxygen
Evolution
Formation of new species: result of mutation (macroevolution and speciation)
Complex molecules came together to form cell
Timeline
Multi-cell organisms – hollow balls
Tree of life grew & became more diverse
Skull developed and a hinged jaw, they also grew bigger and developed fins therefore
fish dominated the water
Amphibians dry scaly skins, broke their link with water and created reptiles
Dinosaurs came after crocodiles and dominated the land
Great proportion of animals were exterminated
Primates and then humans were introduced
Geologists
Look at and study strata
Layers of rock tell time, and reveal information about the past
KT boundary – black layer of clay, iridium is in this layer
Dinosaurs are located below this layer
Mammals
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What role did dinosaurs play in human evolution?
A new ecological niche developed…
Phylogenetic Tree – Family/Evolutionary Tree
*An Anthropologist Gets High Every Semester*
Ancestors Australopithecus Anamnesis Australopithecus Afarensis Australopithecus
Garhi Homo Habilis Homo Erectus Homo Sapiens
Ardipithecus “Ardi”
6mya
Owen Lovejoy
Australopithecus Anamnesis Australopithecus Afarensis Australopithecus Garhi
Why they are significant:
5-1 mya
Not the brain, they had small brains
Africa – cradle
Mode of locomotion – bipeds (two legs) *homology*
Garhi – surprise! Used tools
Australopithecus – vegetarians
Lack protein in their diet
350ml – volume of skull
Homo Habilis Homo Erectus
As we enslaved our feet, we freed our hands for new activities
Bigger brain – in part!
Brain works differently
Homo Habils – human handy (tools)
Homo Habils – eat meat, protein increases brain size
600ml – volume of skull
Homo Erectus – BBQ meat
Homo Erectus – begins to use fire (we discovered charred bones)
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