Here is an alternative to BioRender that is TRULY FREE and actively maintained. Over 1500 vectorized images sorted by license type (all creative commons or MIT). Fully editable icons and soon they will launch an Inkscape library.
@GeneCollector
@drawbiomed
Thanks for highlighting! Actually if you open a recent Inkscape version you can click on Import Web Image in the File menu and select BioIcons in the drop-down 😊