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multimaan multimaan
wrote...
Posts: 795
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6 years ago
A sagittal crest is
 
  a. only present in some nonhuman primates.
  b. a characteristic of some A. afarensis species.
  c. a raised ridge of bone running along the midline of the cranium for the attachment of muscles.
  d. not present in any hominin fossils.
  e. only found in humans today
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6 years ago
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