The argument that anatomically modern humans originated in Africa about 160,000 years ago and began to migrate out of Africa around 100,000 years ago, eventually populating the globe, is known as the
a. African origins hypothesis
b. multiregional evolution hypothesis
c. Out of Africa hypothesis
d. modern speciation hypothesis
Question 2
In which research project would it likely be most necessary for females to be asking other females the questions?
a. participant observation of the British royal family
b. a document analysis on gender relations
c. a survey on menstruation
d. fieldwork with striking teachers
Evolutionary changes that led to the modern horse.
(b) Euphorbia in Africa.
Astronomers identified 12-billion-year-old white dwarf stars only 100 light years away from Earth
The “Infertility Belt” In certain countries in Central Africa, infertility rates are as high as 30%
Extinction and extirpation per years
The Cs-131 nuclide has a half-life of 30. years. After 139 years, about 3.0 grams remain. The ...