Author Question: At 2.5 million years ago __________ were all contemporaries on the African continent. a. A. ... (Read 143 times)

Cooldude101 · **on:** Jul 10, 2018

At 2.5 million years ago __________ were all contemporaries on the African continent.

a. A. robustus, A. afarensis and A. garhi
b. A. aethiopicus, A. anamensis, and A. africanus
c. A. boisei, A. anamensis, and A. robustus
d. A. garhi, A. aethiopicus, and A. africanus

Question 2

The wear patterns on animal bones associated with A. robustus suggest they were used __________.

a. as clubs for defense
b. as digging sticks for termites
c. as hammers for cracking nuts
d. as pestles for grinding grass seeds