A bowl of five apples appears as circles, then shrinks and disappears as one is eaten. A middle apple’s fill and radius transition from red to yellow as it becomes a lemon, demonstrating the general update pattern with enter, update, and exit selections. The example uses D3 v5’s `selection.merge`, `transition.attr`, and ordinal `scaleOrdinal` for colors and radii, with SVG circles redistributing horizontally via a computed `cx` position. Data updates are triggered by `setTimeout` after initial rendering from a `range(5)` array.