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Biology, 28.07.2019 03:30 victoriavacodos
An ecologist catches 100 frogs from a pond, marks them, and releases them back into the pond. after a few days, another 100 frogs are captured and 10 have the marks on them. how many frogs are in the pond?
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An ecologist catches 100 frogs from a pond, marks them, and releases them back into the pond. after...
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