According to Charles Darwin, facial expressions a. are a uniquely human expression of emotion. b. may have originated in a common ancestor. c. vary from culture to culture. d. are a sexually selected trait. - Qammunity.org

According to Charles Darwin, facial expressions a. are a uniquely human expression of emotion. b. may have originated in a common ancestor. c. vary from culture to culture. d. are a sexually selected trait.

asked Oct 28, 2021 6.5k views

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