Among the following microorganisms belongs Gram-negative bacteria________
A. Escherichia coli
B. Staphylococcus aureus
C. Bacillus megaterium
D. pneumococcus
Answer:A
Among the following microorganisms belongs Gram-negative bacteria________
A. Escherichia coli B. Staphylococcus aureus C. Bacillus megaterium D. pneumococcus