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1 vote
1. Which structure (s) in primates enables them to develop complex social systems?

A. a well-developed cerebrum
B. a long tail
C. thumbs and big toes
D. a skeleton designed for climbing

User TheUnreal
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2 Answers

4 votes
A. a well-developed cerebrum
User Andy Lynch
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8.2k points
4 votes
The correct answer is A. a well-developed cerebrum
User Linsey
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7.6k points
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