Question

short note of useful and harmful bacteria​

Answer 1

Answer:

useful bacteria:

1) in useful bacteria cynobacteria is most because they fixed atmospheric nitrogen in soil which Very necessary for every plant. ex-psudomonas, anabana, Nostoc,etc

2) bacteria like ecolli which present in

intstinal region of man which help in digestion, the bacteria like triconepha present in gut of wood eating inspector which help for digestion of cellulose by secrating cellulase.

harmful bacteria :

bacteria causes bacterial dieseases