The prefix that indicates something is 'after' is?

The prefix that indicates something is 'after' is "meta-." This prefix is derived from Greek and is used in various contexts across different fields, such as science, philosophy, and linguistics, to imply a change, transformation, or something that is 'beyond' or 'after' a certain stage. In biological terms, for example, "metamorphosis" represents a process of transformation or change after a previous form. Thus, when referring to the idea of something occurring after or going beyond, "meta-" accurately fits this description.

In contrast, the other prefixes provided have different meanings. "Meso-" typically refers to something that is in the middle or intermediate. "Peri-" indicates surrounding or enclosing, often used to describe something that is around or about a specific object. "Sub-" means under or beneath, suggesting a lower position or state relative to something else. Each of these prefixes has its own distinct connotation, making "meta-" the correct choice when discussing something that is 'after' in a more abstract or transformative sense.