Anthro Ch 6
According to the model of human evolution in Ember and Ember, the presumed common ancestor of apes and modern humans lived about __________ million years ago.
6
Sahelanthropus tchadensis lived about __________ million years ago.
7
The tool tradition identified with Homo erectus is the __________.
Acheulian
The first definite hominid was __________.
Australopithecus
The Leakeys worked for almost 30 years at __________ before finding a hominid fossil, A. boisei.
Olduvai Gorge
Which of the following has evidence showing that it may have been a bipedal early hominid?
Orrorin tugenensis
Gracile australopithecines include all of the following except __________.
aethiopicus
Robust australopithecines include all of the following except __________.
africanus
Acheulian sites were usually located close to __________.
all of the above
What makes Ardipithecus ramidus unique is that it __________.
combined apelike dentition with bipedalism
Early Olduvai hominids __________.
exploited a wide range of animals
Generally, the greater the sexual dimorphism, the __________ the social dominance of males over females.
greater
The widening of the female pelvis is related to __________.
larger baby brains
Sexual dimorphism in Homo erectus is __________.
less than in earlier Australopithecine species
Anthropologist Donald Johanson found 40 percent of the skeleton of a female hominid at Hadar; he named it __________ after the Beatles song.
lucy
The fossil that Raymond Dart discovered was that of __________.
young child
The earliest Australopithecine species, anamensis, is dated to about __________ million years ago.
3.9-4.2
The earliest identifiable stone tools from East Africa date from about __________ million years ago.
2.5
The average size of the brain of Homo sapiens is _________ cc.
1300
Undisputed bipedal early hominids lived in __________ about 4 million years ago.
East Africa
The first hominid species to be widely distributed in the Old World was __________.
Homo erectus
A. anamensis has been found in several locations in __________.
Kenya
The famous footprints of Australopithecus were found at __________.
Laetoli