Which gammaproteobacteria are facultatively anaerobic, gram-negative rods that inhabit the intestinal tracts of humans and other animals? which gammaproteobacteria are facultatively anaerobic, gram-negative rods that inhabit the intestinal tracts of humans and other animals? vibrionales legionellales pseudomonadales enterobacteriales?

Answer;

-Enterobacteriales

Explanation;

-A facultative aerobe is an organism that makes energy in the form of  ATP by aerobic respiration if oxygen is present, but is capable of switching to fermentation or anaerobic respiration if oxygen is absent.

-The Gammaproteobacteria is a large, diverse group that includes some of the most important microbial organisms. All organisms in this phylum are unicellular, and most are rods. e.g Escherichia, Enterobacter, Francisella, Pasteurella.

-Enterobacteriales is a large family of gram-negative bacteria, and they are facultative anaerobes, fermenting sugars to produce lactic acid and various other end products.

so whats the answer

geologic time scale (for gradpoint) =)