Question

useful and harmful bacteria



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Answer 1

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:

Brainlist please please

Answer 2

Answer:

Examples of helpful bacteria are E. Coli (when used for the digestion process), Streptomyces, and Rhizobium. Examples of harmful bacteria are E. Coli (when contaminating food), Listeriosis, and Salmonella.