A scatter plot of the Iris dataset displays the relationship between two selectable measurements, such as petal length and sepal width. Two dropdown menus let the user choose which flower attributes appear on the x- and y-axes, with axes and point labels updating dynamically. The visualization uses React for component state and rendering, and D3 v6 functions like `scaleLinear`, `extent`, and `csv` for data loading and scales. Points are rendered as SVG circles using the `Marks` component.