A bowl of fruit demonstrates D3.js data joins and interactive selection. Five apples render as circles that transition in size and position over time, with one apple morphing into a lemon and others disappearing. Clicking any fruit highlights it with a black stroke. The code uses `selection.data`, `enter`, `merge`, and `exit` with `transition.attr` to animate SVG circles, plus `scaleOrdinal` for color and radius mappings.