chapter 2 the scope of biology
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eugeniordzd on December 9, 2011
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bio
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34 terms
Terms | Definitions |
|---|---|
 Archea | Domain of organisms prokaryotic that are biochemically and genetically distinct from bacteria. |
| Bacteria | Domain of prokaryotic organisms that are biochemically and genetically distinct from archaea. |
| Biosphere | The regions of the surface and atmosphere of the Earth where living organisms exist. |
| Cell | The basic structural and functional unit of all organisms. |
| Class | A taxonomic group containing one or more orders. |
| Classification | The act of distributing things into classes or categories of the same type. |
| Consumer | An organism that obtains energy by feeding on other organisms. |
| Diversity | Variety. |
| DNA | A long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix. |
| Domain | Most inclusive taxonomic category; larger than a kingdom. |
| Ecosystem | A system formed by the interaction of a community of organisms with their physical environment. |
| Energy | The capacity to do work. |
| Enviornment | All of the surroundings factors that affect the developing and functioning of a living thing. |
| Eukarya | The nucleus of a eukaryote cell. |
| Eukaryotic | Having cells with 'good' or membrane-bound nuclei. |
| Evolution | The sequence of events involved in the evolutionary development of a species or taxonomic group of organisms. |
| Family | A taxonomic group containing one or more genera. |
| Gene | A segment of DNA that is involved in producing a polypeptide chain. |
| Genus | Taxonomic group containing one or more species. |
| Homeostasis | Process by which organisms maintain a relatively stable internal environment. |
| Kingdom | One of seven biological categories: Monera or Protoctista or Plantae or Fungi or Animalia. |
| Multicellular | Consisting of many cells. |
| Order | Taxonomic group containing one or more families. |
| Organism | A living thing. |
| Photosynthesis | Process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches. |
| Phylum | The major taxonomic group of animals and plants. |
| Population | A group of organisms of the same species populating a given area. |
| Producer | An organism that makes its own food. |
| Prokaryotic | Cells that do not have a nucleus. |
| Regulation | The ability to adapt to internal and external stimuli. |
| Reproduction | The sexual or asexual activity of conceiving and bearing offspring. |
| Species | Type of organism or a distinct form of life. |
| System | Complex organization formed from a simpler combination of parts. |
| Unicellular | Having or consisting of a single cell. |
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