What tool did Irven DeVore fashion for his own surgery? a. a ...

[jake]

What tool did Irven DeVore fashion for his own surgery?
 
  a. a diamond scalpel
  b. a pebble tool
 c. a steel blade
 d. an obsidian scalpel

Question 2

As an initial change from the Neolithic period, researchers found that high crop yields, resulting from agricultural innovations:
 
  a. made more protein available so the brain could expand.
  b. provided more food for people, beginning an obesity epidemic.
  c. contributed to high populations densities in ancient civilizations.
  d. freed up people to become involved with trade speculation.
  e. allowed large empires to obtain global dominance.

[Meganchabluk]

Answer to Question 1

d

Answer to Question 2

c

[jake]

YES! Correct, THANKS for helping me on my review

[alvinum]

Thanks for the timely response, appreciate it