Evidence from ancient skeletons suggests that the first mammals ...

[jman1234]

Evidence from ancient skeletons suggests that the first mammals appeared over _______________ million years ago, whereas the earliest primates first evolved approximately _______________mill ion years ago.
 
  a. 200/65
 b. 265/150
  c. 175/65
 d. 100/5

Question 2

Which technique of making tools involves the preparation of a striking platform at one end of a specially prepared core, after which three or four long, triangular flakes are detached, leaving a nodule shaped like a tortoise shell?
 
  a. Oldowan
  b. Acheulian
  c. Paleoindian
  d. Levalloisian
  e. Mousterian

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Answer to Question 1

a

Answer to Question 2

d