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 orbitsc 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 Asiab common in East and South Africac adapting to cold glacial climates in Europed rafting to South Americae none of the above

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Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter24: Systematics And Phylogenetics: Revealing The Tree Of Life

Section: Chapter Questions

Problem 9TYK: Which of the following pairs of structures are homoplastic? a. the wing skeleton of a bird and the...

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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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