A reusable scatter plot displays the Iris dataset by mapping petal width to the x-axis and sepal length to the y-axis, with species represented by distinct symbols. Built with D3.js, the chart uses `scaleLinear`, `scaleOrdinal`, and `symbol` to generate SVG paths, while `axisLeft` and `axisBottom` render labeled axes. The visualization adapts to the browser window size and loads data from a remote CSV file.