What Makes Us Human?

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WHAT MAKES US HUMAN???

Panspermia Theory: Comets crashed into the earth and brought with them small microscopic form of bacteria or "life"; thus all creatures have DNA in common

Hot Earth Hypothesis: The planet was heated to extraordinary temperatures via massive volcanic eruptions, the extreme heat created aminoacids which are necessary to the creation of protein and DNA

Cold Earth Hypothesis: The planet was lowered to extraordinary temperatures (perhaps in ancient oceans). The crystaline structure of ice alined molecules in a new way to create adenine, one of the four bases to DNA.

Creationism: Every religion has a story to explain how their god created all plants, animals and humans (with DNA).

Charles Darwin

Theory of Natural Selection

HMS Beagle around Galapagos Islands

Alfred Russel Wallace's conclusions pushed Darwin to publish his own

2 CENTRAL CLAIMS

-all organisms are descended from one ancestor

-"natural selection" made the change possible, thus creating new species as complex as humans.

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