Identify the prefix that denotes "false" or "fake".

The prefix "pseudo-" is derived from the Greek word meaning "false" and is widely used in various contexts to indicate something that is deceptive or not genuine. In medical terminology and other scientific fields, "pseudo-" is often employed to differentiate between an authentic entity and one that mimics or appears to be that entity without being a true representation. For instance, "pseudopregnancy" refers to a situation that mimics some aspects of pregnancy but is not a genuine pregnancy. This understanding aligns with the standard definitions seen in medical literature, making "pseudo-" the accurate choice to denote "false" or "fake."

In contrast, the other prefixes pertain to different meanings: "homo-" typically signifies similarity or sameness; "dys-" implies difficulty or abnormality; and "aniso-" denotes inequality or dissimilarity. These associations highlight why they do not connect with the concept of falseness as effectively as "pseudo-" does.