A stylized biological cell is drawn in SVG with D3 v5, showing a green microvillus, a red cytoplasmic region, a yellow nucleus, and a partially outlined cell body constructed from rectangles and an arc path. The code uses `d3.arc` to compute the curved top of the cell and `d3.select` to append shapes to an SVG canvas. Animated commented-out sections suggest past experiments with `transition.attr` for moving eyes and altering a mouth shape, though the visible result is a static diagram.