Can you count the number of ...
Can you count the number of squares in the picture?Correct answers: 140
The first user who solved this task is Donya Sayah30.
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Leeuwenhoek description of protistsIn 1674, Antonie van Leeuwenhoek, in his continuing series of communications to the Royal Society, wrote a letter describing many protists, including the ciliate Vorticella. |