quiz2.docx - Quiz 2 Q1:Compare and contrast the physical...

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Quiz 2 Q1:Compare and contrast the physical trail locomotion and diet and habitat of A. Africanus and A. Robustus Compare cranial capacity, inside of the skull. A Africanus has 450 to 500 cc cranial capacity. A Robustus has 500 to 550 cc cranial capacity. A Africanus has a slightly smaller cranial capacity compare with A.Robustus. A .Africanus has a rounded cranium, A robust has a low lying cranium Forehead: A africanus has a receding forehead, a robustus has no forehead at all. A robustus has a sagittal crest. A sagittal crest is a large bony ridge along midline of the skull, it is a muscle attachment for large jaws. A Africanus does not have a sagittal crest, thus A. Africanus has small jaw and small teeth whereas a robust has large jaw and large teeth. Zygomatic arches: A africanus has a small and narrow zygomatic arches, A robust has a large flaring zygomatic arches. A robustus has large wide face compare to small narrow face of A Africanus.
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