What is the theory proposed by Relethford called?
a. Mostly out of Africa
b. Complete replacement
c. Partial replacement
d. Regional
e. Complete
Question 2
According to Partial Replacement Models, modern humans first appeared in Africa
a. and interbred with premodern populations of Eurasia, thus partially displacing them.
b. and remained there until modern humans from Asia displaced them.
c. about 500,000 years ago.
d. but were later displaced by European Neandertals.
e. gave rise to several subspecies in Africa, Europe, and Asia.
The age structure of human populations in West Africa and Western Europe, as of 2000.
(a) Masai from East Africa have body types adapted to warm climates.
Detonation is a secondary ignition of the air–fuel mixture. It is also called spark knock or ...
Fixed bed state (i) and complete fluidization (ii)
Humans have evolved, beginning in Africa
Cereal production in Africa may decrease by as much as 50% by 2080 in some areas