A bowl of fruit demonstrates D3’s general update pattern as apples and lemons enter, update, and exit with animated transitions. The SVG circles change position, radius, and fill color over time using `d3.scaleOrdinal` for color and size, while a key function tracks each fruit by unique ID. The code applies `transition().duration(1000)` to animate entering and exiting circles, merging enter and update selections with `merge()`, and removing exit selections after shrinking their radius to zero.