Multiple Choice
In the evolution of human beings,how long ago did we go from being quadrupeds (walking on four legs) to bipeds (walking on two legs) ?
A) Approximately 100 billion years ago
B) Approximately 50 million years ago
C) Between 5 and 10 million years ago
D) Between 1 and 2 million years ago
Correct Answer:
Verified
Correct Answer:
Verified
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