| 100% | LINNAEUS | 8 | Swedish botanist, devised classification system |
| 55% | LINNAEUS | 8 | Swedish botanist's system for naming living things |
| 49% | LINNAEUS | 8 | Carl __, botanist who devised Latin taxonomy system |
| 46% | LINNAEUS | 8 | Carolus —, 18th-century Swedish botanist who originated the modern scientific classification of plants and animals |
| 40% | LINNAEUS | 8 | Swedish botanist who classified plants |
| 40% | ABO | 3 | Blood classification system |
| 40% | ABO | 3 | Hematological classification system |
| 40% | COLORCODES | 10 | Visual classification systems |
| 39% | TAXONOMY | 8 | Classification system of organisms in biology |
| 39% | ABO | 3 | Classification system used in some banks |
| 38% | PERIODIC | 8 | Chemical element classification system: __ Table |
| 37% | DAHLIA | 6 | Flower named for a Swedish botanist |
| 37% | DAHLIAS | 7 | Flowers named for a Swedish botanist |
| 37% | LINNAEUS | 8 | Carl, Swedish botanist who classified animals |
| 37% | REDLIST | 7 | IUCN classification system for endangered species |
| 37% | DEWEY | 5 | Inventor of a library classification system |
| 36% | CAROLUS | 7 | __ Linnaeus, devised plant categorisation system |
| 36% | ABO | 3 | ___ system (human-blood classification) |
| 34% | CELSIUS | 7 | Swedish astronomer who devised the centigrade thermometer |
| 34% | DEWEY | 5 | ___ decimal system (library classification method) |
| 32% | GREENZONES | 10 | Areas with low COVID-19 infection rates, per some classification systems |
| 32% | CARHEATER | 9 | Vehicle warming system devised by Margaret Wilcox |
| 32% | PITMAN | 6 | Isaac __, devised a shorthand note-taking system |
| 32% | PUTNAM | 6 | Herbert —, American librarian who originally developed the Library of Congress Classification system |
| 32% | CUBERULE | 8 | Food classification system in which a Pop-Tart is considered a calzone |
| 29% | DEWEY | 5 | Melvil _, US librarian who founded a system of decimal classification |
| 27% | DEWEY | 5 | Melvil —, US inventor of a system for the classification of library books |
| 24% | METRIC | 6 | ____ system |
| 24% | SOLAR | 5 | ____ system |
| 23% | COOKEDUP | 8 | Devised |