A scatter plot visualizes the Iris dataset, plotting sepal length against petal length and encoding the three flower species with distinct symbol shapes. The chart includes labeled axes and a shape legend that identifies each species. Built with D3 v7, it uses `scaleLinear`, `scaleOrdinal`, and `symbol` generators to position and render marks, with data fetched from a remote CSV and parsed via `csvParse`. Axes and legends are composed through reusable D3 modules.