What human behaviors were protective centuries ago but are harmful now? What has changed, the environment or humans or both?

Each week, there will be one discussion question for you to answer by Thursday in APA format with at least 1 source cited.

This part is worth 50 points. By Sunday of the same week, you must read and respond to 3 classmates for full credit. Responses are worth 10 points per response for a combined total of 80 points each week .

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