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A pond contains 500 fish, 100 of which have been tagged. You catch 50 fish. How many of them would you expect to be tagged?
answered
May 14, 2017
Biology
high-school
3
votes
48.6k
views
How does this photograph reflect the Tiananmen Square incident? It shows the futility of the protestors and the patience of the Chinese military in dealing with them. It shows the determination of the
answered
May 8, 2017
History
high-school
6
votes
82.4k
views
Why do the body structures of some species support Darwin’s theories?
answered
Apr 18, 2017
Biology
high-school
6
votes
203k
views
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