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OpenStudy (anonymous):

Medal Given (a) Estimate the mean brain size of Homo habilis. .................... cm³ (b) Suggest how we know about the brain size of Australopithecus. (c) Suggest an explanation, in terms of natural selection, for the change in brain size during the evolution of Homo sapiens.

OpenStudy (anonymous):

OpenStudy (anonymous):

@AravindG, @CGGURUMANJUNATH

OpenStudy (wolfe8):

Mean is average, so take the total size for all brains and divide by how many of them

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