| Term | Definition |
|
antibiotic |
A chemical that kills bacteria or slows their growth without harming the body cells of humans |
|
asexual reproduction |
The reproductive process that involves only one parent and produces offspring that are identical to the parent |
|
bacterium |
A single-celled organism that is a prokaryote; it belongs to one of two kingdoms- Archaebacteria and Eubacteria |
|
binomial nomenclature |
The naming system for organisms in which each organism is given a two part name- a genus and species |
|
classification |
The process of grouping things based on their similarities |
|
decomposer |
An organism that breaks down large chemicals from dead organisms into small chemicals and returns important materials to the soil and water |
|
flagellum |
A long, whiplike structure that helps an unicellular organism move |
|
genus |
A classification grouping that consists of a number of similar, closely related species |
|
infectious disease |
A disease that can pass from one organism to another |
|
parasite |
An organism that lives on or in a host and causes harm to the host |
|
sexual reproduction |
The reproductive process that involves two parents who combine their genetic material to produce a new organism, which differs from both parents |
|
species |
A classification grouping that consists of members who can mate and produce fertile offpsring. |
|
taxonomic key |
A series of paired statements that describe the physical characteristics of different organisms |
|
vaccine |
A substance used in a vaccination that consists of pathogens that have been weakened or killed but can still trigger the immune system response |
|
virus |
A small, nonliving particle that invades and then reproduces inside a living cell |