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Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.
Clarification of question
Thank you for your kind words of appreciation.
For the population blank, the correct answer is the population of frogs. For the ecosystem and community levels and for the organism and smaller levels, students should provide appropriate answers. I hope that clarifies the intention of the question sufficiently, but if not, please email me at iwaldron@upenn.edu.
Ingrid