Ch. 6 Crossword

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

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