Across
- 3. process in which a unicellular organism transfers some of its genetic material to another unicellular organism
- 4. small, nonliving particle that invades and then reproduces inside a living cell
- 10. organism that breaks down large chemicals from dead organisms into small chemicals and returns materials to soil and water
- 11. small, rounded, thick-walled, resting cell that forms inside a bacterial cell
- 13. process of grouping things based on similarities
- 15. long, whiplike structure that helps a unicellular organism move
- 16. poison that can harm an organism
- 19. reproductive process that involves only one parent and produces offspring identical to the parent
- 20. organism that lives on or in a host and causes harm to the host
- 21. series of paired statements that describe the physical characteristics of different organisms
Down
- 1. reproductive process that involves two parents who combine genetic material to produce a new organism which differs from both parents
- 2. disease that can pass from one organism to another
- 5. substance used in a vaccination that consists of pathogens that have been weakened or killed but can still trigger immune system
- 6. naming system for organisms that consists of two parts: genus name and species name
- 7. organism that provides a source of energy or a suitable environment for a virus or for another organism to live
- 8. group of similar organisms whose members can mate with one another and produce fertile offspring
- 9. a virus that infects bacteria
- 12. single-celled organism that is a prokaryote and belongs to either Archeabacteria or Eubacteria
- 14. form of asexual reproduction in which one cell divides to form two identical cells
- 17. classification grouping that consists of a number of similar, closely-related species
- 18. a chemical that kills bacteria or slows their growth without harming body cells of humans
- 21. scientific study of how living things are classified