complete solutions
Homo Erectus - correct answer ✔✔Around 1.7 mya. About 5 and a half foot tall
and 100 lbs. Cranial size of about 700 to 1250 cm^3. Long and low braincase
receding from large brow ridges with small forehead.
nuchal torus - correct answer ✔✔A projection of bone in the back of the cranium
where neck muscles attach. These muscles hold up the head.
Pleistocene - correct answer ✔✔The epoch of the Cenozoic from 1.8 mya until
10,000 ya. Frequently referred to as the Ice Age, this epoch is associated with
continental glaciations in northern latitudes.
hunter-gatherers - correct answer ✔✔People who make their living by hunting,
fishing, and gathering their food and not by producing it.
"soft hammer" percussion - correct answer ✔✔A direct percussion method of
making stone tools that uses a resilient hammer or billet to gain greater control
over the length, width, and thickness of flakes driven from a core.
Olduvai, Africa - correct answer ✔✔1.4 mya. Large individual, very robust (male?)
H. erectus.
Nariokotome, West Turkana - correct answer ✔✔1.6 mya. Nearly complete
skeleton; young male