Which of the following presents the primary challenge that the Bering Land Bridge represented the first route for the first humans in the New World?
a. the earliest occupations pre-date the presence of Beringia
b. many early occupations pre-date the presence of the Ice Free Corridor
c. there are no Upper Paleolithic sites in northern Asia at the time of first settlement
d. modern Native Americans are genetically unrelated to northern Asian populations
e. the technologically simplest way to enter is not on foot
Question 2
Which of the following best describes the nature of Upper Paleolithic occupations in the New World?
a. There are no documented occupations that coincide with the presence of Beringia.
b. People were adapted to high-latitude conditions as early as 50,000 ya.
c. The Upper Paleolithic peoples from northern Asia were culturally and geographically capable of entering the New World.
d. Colder climates and sparse resources existed in the coastal regions, compared to the interior.
e. The biological evidence of the earliest people are prolific.
Annual net primary productivity on Earth.
Primary Motor Cortex and Seizures
Levels of protein structure: Primary structure
Frontal section of primary somatosensory area in right cerebral hemisphere
Model for ecosystems on land
A very small sampling of organisms in an arctic food web on land.