The argument has been made that in order to have large brains it ...

[mynx]

The argument has been made that in order to have large brains it is necessary to
 
  A) decrease the length of the intestines
  B) decrease some other metabolically expensive organ
  C) raise the basal metabolic rate
  D) transition to higher quality foods
  E) any or all of the above

Question 2

Extinction has the effect(s) of
 
  A) creating progress in evolutionary patterns
  B) reducing both species diversity and the number of available ecological niches
  C) reducing species diversity and opening up ecological niches
  D) eliminating only species with bad genes
  E) increasing both species diversity and the number of good genes shared by all organisms

[mmj22343]

Answer to Question 1

E

Answer to Question 2

C

[mynx]

Great answer, keep it coming

[peter]

Excellent