This scatter plot shows the classic Iris dataset, mapping sepal length on the x-axis against petal length on the y-axis. Circles are colored by species using a D3 ordinal color scale with the `d3.schemeCategory10` palette. The visualization is built with D3 v7, rendering SVG elements through custom modules for axes and marks. Data is loaded asynchronously from a CSV file using `d3.csv`, with linear scales for both dimensions and axis components generated via `d3.axisBottom` and `d3.axisLeft`.