The results of various DNA studies indicate that traits such as skin color are more
diverse in sub-Saharan Africa than anywhere else. This supports the idea that Homo
sapiens evolved in Africa because:
a) other Homo species, such as Homo erectus, arriving in Africa would have brought
features with them
b) Homo sapiens would have spent very little time in Africa before moving out to other
areas, so that a population bottleneck would have occurred
c) Homo sapiens would have had a longer connection to Africa and so there was more
time for random mutations in such features to occur
d) the environmental conditions of sub-Saharan Africa are such that they promote rapid
evolutionary change, a situation not found elsewhere in the world
e) these traits appear to have come from the Neanderthals, and humans and
Neanderthals only mixed in Africa
So-called “delayed return” strategies that may have been employed by Late
Epipaleolithic groups include:
a) making nets to trap birds
b) harvesting and then storing food
c) constructing fish-weirs (traps)
d) all of the above
e) a and c only