PDF chapter test TRY NOW
Suggest a suitable word for each of the following statements.
1) Chemicals added to food to prevent growth of micro organisms.
2) Nitrogen-fixing micro organism present in the root nodules of legumes.
3) Agent which spreads pathogens from one place to another.
4) Chemicals which kill or stop the growth of pathogens.
Answer variants:
Carrier or Vector
Rhizhobium
Antibiotics
Preservatives
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