A scatter plot visualizes the Iris dataset, showing petal length versus petal width with points colored by species (setosa, versicolor, virginica). The SVG rendering uses d3.scaleLinear for axes, d3.scaleOrdinal for color mapping, and d3.axisBottom/axisLeft to draw the scales. Data loads remotely via d3.csv, parsing numeric fields before rendering circles with d3.selectAll and enter/append patterns.