| A | B |
|---|
| classification | The process of grouping things based on similarities |
| taxanomy | The scientific study of how living things are classified |
| binomial nominclature | Tha naming system for organisms in which each organism is given a two-part name-genus and species |
| genus | A classification grouping that consists of a similar, closely related species |
| species | A group of similar organisms whose members can mate with one another and produce fertile offspring |
| taxonomic key | A series of paired statements that describe the physical characteristics of different organisms |
| bacteria | A single-celled organism that is a prokaryote-belongs to one of two kingdoms-Archaebacteria or Eubacteria |
| flagellum | A long, whiplike structure that helps a unicellular organism move |
| binary fission | A form of asexual reproduction in which one cell divides to form two identical cells |
| asexual reproduction | The reproductive process that involves only one parent and produces offspring that are identical to the parent |
| sexual reproduction | The reproductive process that involves two parents who combine their genetic material to produce a new organism, which differs from both parents |
| conjugation | The process in which a unicellular organism transfers some of its genetic material to another unicellular organisms |
| endospore | A small, rounded, thick -walled, resting cell that forms inside a bacterial cell |
| decomposers | An organism that breaks down large chemicals from dead organisms into small chemicals and returns important materials to the soil and water |
| infectious diseases | A disease that can pass from one organism to another |
| antibiotic | A chemical that kills bacteria or slows their growth without harming the body cells of humans |
| virus | A small nonliving particle that invades and then reproduces inside a living cell |
| host | An organism that provides a source of energy or a suitable environment for a virus or another organism to live |
| parasite | An organism that lives on or in a host and causes harm to the host |
| bacteriophage | A virus that infects bacteria |
