Biology
Which one of the following scientists first time saw bacteria through a microscope made by himself ?

Robert Virchow
Robert Hooke
Louis Pasteur
Anton Van Leeuwenhoek

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Biology
Normal adult human male has

10 gram of haemoglobin/100 gram of blood
14 gram of haemoglobin/100 gram of blood
18 gram of haemoglobin/100 gram of blood
24 gram of haemoglobin/100 gram of blood

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