Acquisition - S1-E19
Trivia: One of the Ferengi, Ulis, is played by Ethan Phillips. Phillips played Neelix in "Star Trek: Voyager." In S3 E5 of Voyager, "False Profits", Neelix disguised himself as a Ferengi.
Trivia: Trip tells Malcolm, "if I remember my honors biology course correctly, your hair and nails keep growing for quite a while after you're dead." However, this is a myth and would never be taught in any biology class, especially in the future. Nothing keeps growing after you're dead, as the skin dries out, and the body decomposes, the skin retracts and just makes the hair and nails look longer. This is more likely a mistake, but since it's possible Trip isn't a biology expert, forgot his honors biology, or is just teasing Malcolm, it should be noted as trivia.
Answer: While ratings did drop, there was a lot going on to cause the rating drops and cancellation. First, "Enterprise" was on UPN, which was dissolved a year after the show was cancelled. At the time of cancellation, it was UPN's highest rated drama. Because they were on at night, they were often preempted by local UPN broadcast of baseball games. And it wasn't even aired in every market. They also lost a major corporate backer early and it was difficult for them to over come that loss. Plus, for season 4, they switched to a Friday night line up, so they were competing against Fox shows, like "The Simpsons" whereas on Wednesdays they didn't have much competition.
Bishop73