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Name: Period: _____ Date
Name: Period: _____ Date

... 15. Some forms of life had become photosynthetic by __________________________ years ago, including ______________________________, a group of photosynthetic, unicellular prokaryotes. 16. Many scientists think that it took _____________________________ years or more for oxygen gas to reach today’s l ...
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Sociocultural Evolution
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... -Gerhard and Jean Lenski This is a theory of how societies (socio) and cultures (cultural) have changed throughout the course of the history of humanity. The Lenskis believe the key driving force behind this change is technology. They define technology as including both objects (material culture) an ...
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... 9. What criteria would need to be met in order for a population to NOT evolve? 10. What are transitional fossils? Give examples. 11. How does sexual selection and predation affect guppy coloration? 12. What is the difference between evolution and speciation? 13. How was spontaneous generation dispro ...
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Ch 15 Fossil Records

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Thursday 2nd: Mike Jesnick

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Unilineal evolution

Unilineal evolution (also referred to as classical social evolution) is a 19th-century social theory about the evolution of societies and cultures. It was composed of many competing theories by various anthropologists and sociologists, who believed that Western culture is the contemporary pinnacle of social evolution. Different social status is aligned in a single line that moves from most primitive to most civilized. This theory is now generally considered obsolete in academic circles.
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