Author Question: Although all of the following may have been critical to the development of an expanding brain, which ... (Read 22 times)

melly21297 · **on:** Aug 11, 2018

Although all of the following may have been critical to the development of an expanding brain, which do scientists believe would have contributed most directly to brain growth?

a. the migration into colder and less known areas placing a premium on learning
b. a genetic mutation resulting in a smaller jawbone and smaller facial muscles
c. the detoxification of foods, allowing humans to live to significantly older ages
d. the ability to conquer predators, allowing humans higher meat consumption levels

Question 2

El Pilar is located not far from Tikal:

a. in Mexico.
b. in Cuba.
c. in Spain.
d. on the border between Belize and Guatemala.
e. on the border between Guatemala and Honduras.

abctaiwan · **Reply #1 on:** Aug 11, 2018

Answer to Question 1

b

Answer to Question 2

d

melly21297 · **Reply #2 on:** Aug 11, 2018

Both answers were spot on, thank you once again

abctaiwan · **Reply #3 on:** Aug 11, 2018

Great! Please up vote

Author Question: Although all of the following may have been critical to the development of an expanding brain, which ... (Read 22 times)

melly21297

Although all of the following may have been critical to the development of an expanding brain, which ...

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abctaiwan

Although all of the following may have been critical to the development of an expanding brain, which ...

melly21297

Although all of the following may have been critical to the development of an expanding brain, which ...

abctaiwan

Although all of the following may have been critical to the development of an expanding brain, which ...