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Ignoring color, what kind of symmetry does the pinwheel have
answered
May 5, 2017
Mathematics
high-school
1
vote
131k
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Use selective breeding and natural selection in the same sentence
answered
Jun 8, 2016
Biology
middle-school
2
votes
135k
views
What is Circular Motion?
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Jul 11, 2015
Physics
high-school
4
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17.0k
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