Question

which term refers to nutrient media designed to favor the growth of certain bacteria over others?
differential media
selective media
general - purpose media

Explanation:

To solve this, we analyze each option:

• Differential media: Used to distinguish between different bacteria based on their reactions (e.g., color changes), not to favor growth of certain bacteria over others.
• Selective media: Contains components that inhibit the growth of some bacteria while promoting the growth of others, which matches the description of favoring certain bacteria's growth.
• General - purpose media: Supports the growth of a wide range of bacteria, not favoring specific ones.

Answer:

B. selective media