Question

fill in the blank question

facultative anaerobes include gram- intestinal bacteria and staphylococci.

Explanation:

Identify the characteristics of intestinal bacteria

Most common facultative anaerobic intestinal bacteria belong to the family Enterobacteriaceae (such as Escherichia coli), which are Gram-negative bacilli.

Determine the correct Gram stain classification

The prefix "gram-" is followed by the blank, which describes these intestinal bacteria. Since they are Gram-negative, the correct term to fill in is "negative".

Answer:

Facultative anaerobes include gram-<blank>negative</blank> intestinal bacteria and staphylococci.