A scatter plot of the Iris dataset displays petal length on the x-axis and petal width on the y-axis, with circles colored by species (skyblue for setosa, lightgreen for versicolor, orange for virginica). The visualization uses D3 v6 to load CSV data from a remote URL, scales via `scaleLinear`, and renders SVG circles with `selectAll().data().join()`. Axes are drawn using `axisLeft` and `axisBottom`, while sepal measurements are encoded as the circles' `rx` and `ry` properties, though the circles remain perfectly round.