Question

many bacteria are classified as opportunistic pathogens, meaning that they ______________. were likely once considered non pathogens generally do not cause disease in healthy individuals all of these choices are correct will cause disease if given the opportunity question 21 (1 point) which factor does not affect the effectiveness of microbial control? type of microbe population size color of colony exposure time

Explanation:

Opportunistic pathogens are organisms that can cause disease when the host's immune system is compromised or when they gain access to a part of the body where they do not normally reside. They were likely once considered non - pathogens as they do not cause disease in healthy individuals under normal circumstances. And they will cause disease if given the opportunity (such as a weakened immune system).

For the second question, the effectiveness of microbial control is affected by the type of microbe (some are more resistant than others), population size (larger populations may be harder to eliminate completely), and exposure time (longer exposure to a control agent is usually more effective). The color of a colony is a phenotypic characteristic that has no bearing on how effectively a microbe can be controlled.

Answer:

For the first question: all of these choices are correct.
For the second question: Color of colony.