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20 Bacteria in buttermilk is
1. lactobacillus
2. nitro bacter
3. e.coli
4. all of the above
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19 Green strands of pond water are
1. bacteria
2. fungi
3. algae
4. all of these
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18 Animalcules are
1. bacteria
2. fungi
3. algae
4. all of these
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17 Single lens microscope magnifies ........ times
1. 3
2. 300
3. 3000
4. 30
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