A treatment for bacterial infections from the early 20th century has made a comeback; the use of bacterial viruses to eliminate
bacterial infections. Which explanation most accurately describes the reason for the return of this treatment? A. A wide variety of bacteria cause a large percentage of human infections, producing much sickness and death.
B. Viruses can infect bacteria, transferring pathogenic genes. The viral genes can then be suppressed, causing the bacteria to not replicate viruses.
C.The attachment structures on the virus and the receptors on the host cells make for exquisite specificity of viruses for particular bacterial species.
D. Antibiotic resistance in humans is on the increase, so using a different kind of therapy is more beneficial.
The best way to find out if the amoeba and paramecium are alive is to look at them under the microscope and see them moving. The E coli and Bacillus you can spread on nutrient agar in a Petri dish and see if they form colonies.