explain the useful and harmful becteria
Answers
Answer:
Along with the beneficial importance of bacteria, they also have some harmful effect on the human body. Some bacterial species are the source of causing diseases like typhoid fever, tuberculosis, cholera, syphilis and food borne illness. ... To kill harmful bacteria, antibiotics are used.
Explanation:
Helpful 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.