Anatomically modern humans tend to be tall and long-limbed with a short-trunked
body. This supports the notion of an African origin because:
a) these appear to be biological adaptations to tropical and subtropical climates
b) these appear to be biological adaptations to escape from predatory African animals
c) these appear to be biological adaptations to the icy, glaciated Africa of the period
d) these appear to be biological adaptations to early agriculture, which is seen only in
Africa
e) all of the above
One of the primary difficulties that scholars face in understanding the history of the use
of fire by early Homo species is that
a) carbonized wood is impossible to date reliably so it is hard to tell when hearths were
used
b) early Homo species only lived in Africa so their need for fire for warmth was
reduced
c) it is difficult to tell the difference between soil that has been hardened by fire and soil
that has been hardened by exposure to sunlight
d) early Homo species appear to have considered fire sacred and destroyed all evidence
of campfires when they had finished with them
e) it is difficult to tell the difference between fire that was controlled by humans and fire
that occurred naturally based on the archaeological record