Question

short notes on useful and harmful bacteria ​

Answer 1

Answer:

by using the useful bacteria many antibiotics are obtained

harmful bacteria can cause various diseases like typhoid chopera etc

useful bacteria also work as nitrogen fixers methane producers

Answer 2

Answer:

harmful bacteria - it refers to the bacteria which trigger an immune response from our body. this bacterial species are the source of causing diseases like typhoid fever, tuberculosis, cholera, syphilis and food borne illness.

useful bacteria - useful bacterias are also known as beneficial bacteria it refers to any bacteria which is beneficial for our body. the example is lactobacillus bacteria which turn milk into curd.