classifying organisms

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Across
  1. 3. a group of organisms thought to have evolved from a common ancestor
  2. 6. a taxonomic rank consisting of organisms that share a common attribute; it is further divided into one or more orders
  3. 7. An RNA virus that reproduces by transcribing its RNA into DNA and then inserting the DNA into a cellular chromosome; an important class of cancer-causing viruses
  4. 11. an infectious, nonliving particle made up of a nucleic acid enclosed in a protein or lipid-protein shell
  5. 14. a rank below kingdom and above class. It is similar to the division in the plant classification
  6. 15. bacteriophage DNA that is embedded in the bacterial host's DNA
  7. 16. an organism that cannot make its own food and must instead feed on other organisms
  8. 18. may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus
  9. 20. Classification system in which each species is assigned a two-part scientific name
  10. 23. information used to link clades together into a diagram
  11. 24. viruses that contain genetic information in the form of rna or dna, surrounded by a protein coat
  12. 26. explains how organelles of eukaryotic cells evolved from prokaryotes
Down
  1. 1. a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes
  2. 2. when a virus enters a cell, makes copies of itself, and causes the cells to burst or lyse
  3. 4. an organism that makes its own food
  4. 5. virus that infects and replicates within bacteria and archaea
  5. 8. a group of organisms that share most characteristics and can interbreed to produce fertile offspring
  6. 9. a host cell is not immediately taken over, but instead, the viral nucleic acid is inserted into the host cell's dna, where it is replicated along with the host dna without damaging the host
  7. 10. the field of biology that deals with classifying organisms
  8. 12. the largest group in the modern biological classification system
  9. 13. the study of the evolutionary history of lineages of organisms
  10. 17. consisting of structurally or phylogenetically related species or a single isolated species exhibiting unusual differentiation
  11. 19. the next level of classification under domain
  12. 21. group or level of organization into which organisms are classified
  13. 22. an organism whose cells contain a nucleus and other membrane bound organelles
  14. 25. an organism that lacks a membrane-bound nucleus and organelles