How did the species of australopithecines differ? How were they similar? What will be an ideal response?
All Australopithecines were small and bipedal. A. anamensis is the oldest, and is more primitive
in its teeth and skull. A. afarensis was fully bipedal and exhibited great variability in size and
weight. It still retained apelike features, such as brow ridges and a forward-jutting jaw. However,
its teeth were intermediate between apes and humans. A. africanus had a flatter face and larger
brain. Both A. robustus and A. boisei are considered robust australopithecines. A. boisei had an
elevated bony crest for jaw muscles, while flat molars indicate that A. robustus was a vegetarian.
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Thinning of some trees from a forest is conversion of the land, not modification
Indicate whether this statement is true or false.
It has been said that "earthquakes do not kill people; buildings do." What are some examples of 21st
century earthquakes that illustrate this? What will be an ideal response?
Large withdrawals of subsurface water can cause a sinking of the land known as ____
a. artificial recharge b. subsidence c. a cone of depression d. an artesian condition
What is the underlying geologic explanation for why western South America is so different from eastern South America?
A. The western side marks a plate divergence and the eastern side marks a plate convergence. B. The western side is a plate boundary and the eastern side is not. C. The eastern side is a plate boundary and the western side is not.