Q.

Which of the following is a correct statement       [2022]

1 Mycoplasma have DNA, Ribosome and cell wall  
2 Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera  
3 Bacteria are exclusively heterotrophic organisms  
4 Slime moulds are saprophytic organisms classified under Kingdom Monera  

Ans.

(2)