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5 votes
Some people have attached ear lobes and some people have free ear lobes. The differences in these traits are caused by A. differences in personality. B. differences in genes. C. differences in diet. D. differences in environment.

2 Answers

2 votes

THE ANSWER IS

B; differences in genes.

User Joanmacat
by
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3 votes
This is caused by difference in genes. B
User Darren Guy
by
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