Science 2

4. Single celled organisms that lacks a nucleus; prokaryotes
5. A small, rounded, thick- walled resting cell that forms inside a bacterial cell
11. Tiny structure located in the cytoplasm of a cell where proteins are produced
12. The ability of bacteria to withstand the effects of an antibiotic
14. A virus that infects bacteria
15. A poison that can harm an organism
16. A tiny, nonliving particle that invades and then reproduces inside a living cell
18. An organism that breaks down chemicals from dead organisms and returns important materials to the soil and water
19. A form of asexual reproduction in which one cell divides to form two identical cells
20. The process in which a unicellular organism transfers some of its genetic material to another unicellular organism
21. The region of a cell located inside the cell membrane or between the cell membrane and nucleus; contains a gel like material and cell structure

1. A substance introduced into a body to stimulate the production of chemicals that destroy specific disease-causing viruses and organisms
2. A reproductive process that involves only one parent and produces offspring that are identical to the parent
3. An organism that lives on or in a host and causes harm to the host
6. A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parent
7. An organism that provides a source of energy or a suitable environment for a virus or another organism to live
8. A chemical that can kill bacteria without harming a person's cell
9. A process of heating food to a temperature that is high enough to kill most harmful bacteria without changing the taste of the food
10. A long, whip like structure that helps a cell to move
13. An illness that can pass from one organism to another
17. The process of breaking down food to release its energy