describe any three useful ways in which bacteria are harmful and useful
Answers
sone bacteria like virus cause disease
they spoil food
they harm us
useful
they are used in making antibiotics or medicines
they are used in bakery for bread and dhokla
they help in digestion ,protozoa
hope this helps
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elpful bacteria:
E. Coli are found in the intestines of humans and aid in digestion.
Streptomyces is used in making antibiotics.
Rhizobium are helpful bacteria found in the soil. They convert nitrogen in the soil.
Harmful bacteria:
E. Coli can also be harmful if food or water is contaminated with it and then eaten.
Listeriosis can cause individuals to become very ill and can even be potentially deadly. Examples of where it can be found are in shellfish, cold cuts, and unpasteurized milk.
Salmonella is very dangerous and lives in the intestinal tracts of humans . It is spread via feces. Foods like poultry and eggs can be contaminated with salmonella and cause severe diarrhea.
The human body contains numerous types of bacteria that are very beneficial and actually protect us from the harmful bacteria.
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