science

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Across
  1. 1. single-celled organisms belonging to the domains Bacteria and Archaea
  2. 7. have a nucleus enclosed within the nuclear membrane and form large and complex organisms
  3. 8. the system of nomenclature in which two terms are used to denote a species of living organism,
  4. 9. grouped in Linnean taxonomy, ranking above a phylum.
  5. 10. diffrent
  6. 11. a group of organisms that can reproduce in nature and produce fertile offspring.
  7. 12. one celled organism
Down
  1. 2. an organism that can produce its own food using light, water, carbon dioxide, or other chemicals
  2. 3. multi celled organism
  3. 4. the branch of science concerned with classification, especially of organisms
  4. 5. the highest taxonomic rank in the hierarchical biological classification system
  5. 6. an organism that eats other plants or animals for energy and nutrients