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Ambiguous Figures - Hills and Valleys

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Photograph by Paul Grobstein.  The lower image is identical to the upper image except that it has been rotated 180 degrees. 

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Remote Ready Biology Learning Activities

Scanning electron microscope image of SARS-CoV-2

Remote Ready Biology Learning Activities has 50 remote-ready activities, which work for either your classroom or remote teaching.

Narrative is determined not by a desire to narrate but by a desire to exchange. (Roland Barthes, S/Z)

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