What are viruses parasitising bacteria called? Draw a well-labelled diagram of the same.

(N/A) Viruses that infect and parasitize bacteria are known as bacteriophages.
These viruses do not consume bacteria as food; instead,they attach to the bacterial surface,inject their genetic material,and utilize the host's cellular machinery to replicate themselves,eventually leading to the lysis of the bacterial cell.
[Diagram: $A$ bacteriophage showing parts like Head,Collar,Tail,Plate,Pins,and Prongs.]