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Author Question: Early tools were made by striking a stone with another - a technique called ________________. a. ... (Read 191 times)

cartlidgeashley

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Early tools were made by striking a stone with another - a technique called ________________.
 
  a. percussion pounding
  b. edge flaking
  c. pounding
  d. percussion flaking

Question 2

______________ is the exchange of sections of chromosomes between one chromosome and another.
 
  a. Segregation
  b. Speciation
  c. Mutation
  d. Crossing-over



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emilymalinowski12

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Answer to Question 1

d

Answer to Question 2

d





 

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