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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
Answer key and new version
Yes, information about how to obtain the answer key is available in the Teacher Preparation Notes. Also, I am nearly finished preparing a new and improved version of this activity, which I hope to finalize and post within the next week or two. Meanwhile, if you would like to have this revised version, please email me at iwaldron@upenn.edu.
Ingrid