Author Question: Two forms of evidence help to confirm the hypothesis that H. erectus evolved in Africa. First, all ... (Read 31 times)

clippers! · **on:** Jul 10, 2018

Two forms of evidence help to confirm the hypothesis that H. erectus evolved in Africa. First, all of the earlier hominins come from Africa. Second,

a. well-preserved postcranial elements are scarce at some H. erectus sites.
b. the adult height of the Nariokotome youth would have been about 6 feet.
c. by 1.7 mya there are well-dated fossils of H. erectus at East Turkana, in Kenya, and not long after at other sites in East Africa.
d. postcranial bones look very similar to modern humans.
e. growth pattern of Nariokotome would have been similar to that of modern humans.

Question 2

In general, the cranium of Homo erectus

a. has a high vertical forehead
b. is composed of delicate, thin bone
c. has no brow ridges
d. is virtually identical to that of modern humans
e. has a pentagonal shape when viewed from behind