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Across 3. the evolutionary history of a group of related organisms 5. the smallest and most exclusive grouping 9. a taxon that is larger and more inclusive than the kingdom 12. gives each species a unique, two-word Latin name consisting of the genus name and the species name

Down 1. was developed by Swedish botanist Carolus Linnaeus in the 1700s 2. a group of organisms that includes an ancestor and all of its descendants 4. includes the Animalia (animals), Plantae (plants), Fungi (fungi), and Protista (protists) kingdoms 6. tried to classify all living things that were known at his time 7. shows how three hypothetical species are related to each other through common ancestors 8. The science of classifying organisms 10. the largest and most inclusive grouping 11. Closely related species are grouped together