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SAT® Subject Test in World History

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Moderate

Skeletal Remains

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Reconstruction of the Fossil Skeleton of "Lucy" the Australopithecus Afarensis. Digital image. Wikipedia. N.p., 21 Mar. 2007. Web. 4 Mar. 2016

Ardipithecis Ramidus Skeleton 1994-1996. Digital image. Wikipedia. N.p., 30 July 2010. Web. 4 Mar. 2016.

Compare the two skeletal remains pictured here. The skeleton on the left is over 4 million years old and the skeleton on the right is 3.2 million years old.

What conclusion can be drawn by comparing the two?

A

Early human species differed little over time.

B

There are too many missing bones to make a proper comparison.

C

The skeletal remains on the left are decaying at a faster rate.

D

Significant evolutionary changes occurred in the human body between the two time periods.

E

The skeletal remains on the right have been preserved utilizing newer techniques.