Assuming salts is required, the following results were found.
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Nitrogen-fixing bacteria free-living in the soil
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Observing the growth of pollen tubes
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Investigating effect of concentration on the activity of trypsin
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Investigating the effect of minerals on plant growth
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Gene induction: ß-galactosidase in E. coli
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Investigating effect of temperature on the activity of lipase
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Making up nutrient agars
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A closer look at blood
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Extracting DNA from living things
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Brine date
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