Zinc dust is added to the nitrate test and the result is red. This indicates:

Simmons medium is utilized for:

Select the amino acid that is utilized in the indole test:

Identify a test that could differentiate P. vulgaris from P. mirabilis:

Pet turtles, snakes and iguanas are known to transmit:

Select the correct pair:

Select the organism that exhibits bipolar staining on the gram stain, said to resemble a safety pin:

Identify the medium used for the citrate test:

Choose the organism that is normal flora in the bowel but can cause a diarrheal illness after a heavy antibiotic regimen:

Choose the statement that is true concerning the K antigen: