This example demonstrates the general update pattern in D3, showing how data joins handle entering, updating, and exiting elements with smooth transitions. Circles represent fruits and are color-coded by type using `scaleOrdinal` for both color and radius. The `fruitBowl` function uses `selection.data`, `.enter()`, `.merge()`, and `.exit()` with `transition().duration()` to animate new apples fading in and removed fruits shrinking away. A series of `setTimeout` calls manipulates the fruit array, popping an apple, changing one to a lemon, and filtering another, all rendered as SVG.