Which of the following is non pathogenic bacteria of colon?
A. Escherichia coli
B. Balantidium coli
C. Entamoeba coli
D. Enterobius vermicularis
Answer:A
Which of the following is non pathogenic bacteria of colon?
A. Escherichia coli B. Balantidium coli C. Entamoeba coli D. Enterobius vermicularis