Biodiversity and Classification

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Across
  1. 4. The ____ species concept says that a species is a distinctly different group based on physical similarities.
  2. 6. The ____ system was the first formal system of taxonomy. It was developed by Carl Linnaeus. He based his classifications on morphology and habitat.
  3. 8. A ____ key is a tool that is used to identify organisms based on their traits. It's kind of like a choose-your-own adventure book.
  4. 10. ____ characters are only found after a split from the descendent line.
  5. 12. _____ is the grouping of objects or organisms based on a set of criteria.
  6. 14. Archaea, Bacteria, and Eukarya are the three _____. This is the broadest category of classification.
  7. 15. The ____ species concept says that a species is a group of organisms that are able to interbreed and produce fertile offspring
Down
  1. 1. ____ characters include things like amino acids and nucleotides. These help scientists determine evolutionary relationships among species.
  2. 2. The ____ species concept says that a species is a cluster of organisms that has a unique phylogeny (evolutionary history).
  3. 3. The biological species concept doesn't work for ____ species (such as dinosaurs) and asexual reproduction
  4. 5. Scientific names are ____ if typed and underlined if handwritten.
  5. 7. ____ characters are found within the entire line of descent of a group of organisms.
  6. 9. ____ characters are physical traits. If species share these, they are closely related.
  7. 11. ____ nomenclature is the naming system that Linnaeus developed. Each species has a scientific name with two parts: a genus and a specific epithet
  8. 12. A ____ is a branching diagram that shows evolutionary history. It's also know as an evolutionary tree or a phylogenetic tree.
  9. 13. ____ was a Greek philosopher that developed the first widely accepted classification system