A bowl of fruit demonstrates the D3 general update pattern as apples and lemons appear, disappear, and change type over time. The visualization uses D3 v5’s `selectAll`, `enter`, `merge`, and `exit` methods to handle data joins, with `scaleOrdinal` mapping fruit types to colors and radii. SVG circles and text elements within groups are updated, while a static rectangle represents the bowl. State changes trigger re-renders via `setTimeout`, showing how joins manage dynamic datasets.