he australopiths differed from the common chimpanzee in: a   the number of different kinds of teeth on each side of each jaw. b   the spacing of the orbits (eye-sockets) on the face. c   the inability to rotate the arm around the shoulder joint. d   the shape of the pelvis. e   the lack of an opposable thumb.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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The australopiths differed from the common chimpanzee in:
a  
the number of different kinds of teeth on each side of each jaw.
b  
the spacing of the orbits (eye-sockets) on the face.
c  
the inability to rotate the arm around the shoulder joint.
d  
the shape of the pelvis.
e  
the lack of an opposable thumb.

 

Which of the following skeletal parts would be most useful for determining whether a 4-million-year-old species was a hominin (vs. an ape)?
a  
the clavicle (collarbone)
b  
the part of the skull that shows the spacing between the orbits
c  
the proximal (shoulder) end of the humerus (upper arm bone)
d  
the distal (knee) end of the femur (thigh bone)
e  
a lower left jaw with two incisors, one canine, two premolars, and three molars

 

By 3 million years ago, the australopithecines were:
a  
extinct in Africa but common in Southeast Asia
b  
common in East and South Africa
c  
adapting to cold glacial climates in Europe
d  
rafting to South America
e  
none of the above
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