4 million years ago experts prediction 50kg 40 based

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Unformatted text preview: mber she is dated at 4.4 million years ago. Experts’ prediction 50kg 4.0 Based in these data, what would you predict the brain size of Ardi to be given that she was dated at 4.4. million years? 4.4. 1) 1500 cc 2) 1200 cc 3) 1000 cc 4) 750 cc 5) 500 cc 6) 350 cc 7) 200 cc 8) 100 cc 0 % 1) 0 % 2) 0 % 3) 0 % 0 % 4) 5) 0 % 0 % 6) 7) 0 % 8) 30 Brain size of Ardi? Based in these data, what would you predict the brain size of Ardi to be given that she was dated at 4.4. million years? 1)1500 cc 2)1200 cc 3)1000 cc 4)750 cc 5)500 cc 6)350 cc 7)200 cc 8)100 cc Experts’ prediction x 300-350 cc 4.0 Primate Brains Primate Ardi had a brain the size of a chimpanzee Human Human Chimpanzee Monkey What is the driving force (natural selection) for an increase in brain size in primates and humans in particular? particular? Increased complexity of social Increased behavior and communication behavior 2) Need for a better memory for Need long range hunting trips long 3) Need for better temperature Need regulation control because of running down prey—the strategy of African h...
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This note was uploaded on 09/26/2012 for the course BIO 200 taught by Professor Herreid during the Fall '07 term at SUNY Buffalo.

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