Bacteria reproduce mainly by

Consider the following statements :- (i) Bacteria have rigid cell wall made up of cellulose (ii) Bacteria reproduce only by binary fission (iii) Ammonia is oxidised to nitrite by the bacteria Nitrosomonas (iv) Viruses are obligate parasites, cannot survive without host Which of the statements are correct and incorrect?

Bacteria reproduces by

Bacteria reproduces by

Bacteria reproduce sexually by

Bacteria reproduce sexually by

Bacteria reproduce sexually by

Bacteria reproduce sexually by

Under unfavourable conditions, bacteria reproduce by