Question

what word describes a microbe that must have oxygen to survive?
o passive aerobe
o semi aerobe
o facultative aerobe
o obligate aerobe

Explanation:

An obligate aerobe is a microorganism that requires oxygen for its growth and survival. It cannot grow in the absence of oxygen. Facultative aerobes can grow with or without oxygen. Semi - aerobes (also known as microaerophiles) require a low concentration of oxygen. Passive aerobe is not a standard term in microbiology for describing oxygen - requirement categories.

Answer:

Obligate aerobe