Footprints preserved in 3.6 million-year-old volcanic ash at Laetoli, Tanzania, indicate that
A. some of our early ancestors may have worn crude sandals.
B. A. africanus was on his/her way out of Africa.
C. A. boisei and A. africanus both lived about 3.6 million years ago.
D. A. afarensis was quadripedal.
E. bipedalism definitely preceded marked brain expansion in human evolution.
Question 2
Which of the following pairs is incorrectly matched?
A. Olduvai Gorge and pebble tools
B. Taung and A.africanus
C. A. afarensis and Laetoli
D. K/Ar and bone
H. erectus migrated out of Africa beginning about 1.8 million years ago and is first known from Geor
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Surtsey, a volcanic island, during the time of its formation.
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