Nitrogen fixing bacteria were discovered by
Koch
Winogradsky
Pasteur
Lister
Additional Questions
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Plants absorb mineral salts from the soil solution through |
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Which one of the following is not an essential element for plants? |
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Immature leaf of plants fall down due to deficiency of |
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A sulphur containing amino acid is |
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A trace element is an element Which of the statements given above is/are correct? |
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Active transport of ions by the cell requires |
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A facultative parasite is one which |
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The function of leghemoglobin in the root nodules of legumes is |
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Obligate parasites are those organisms which |
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All heterotrophs require environment which can provide |
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