Themes of Biology
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15 terms
Terms | Definitions |
|---|---|
 gene | a short segment of DNA that codes for a trait |
| unicellular | one celled organism |
| multicellular | organism that consists of many cells |
| asexual reproduction | offspring produced from a single organism |
| sexual reproduction | offspring produced from one male and one female parent |
| biology | the study of all living things |
| autotroph | organism that produces it's own food |
| Heterotroph | An organism that obtains organic food molecules by eating other organisms or their by-products. |
| organ | a fully differentiated structural and functional unit in an animal that is specialized for some particular function |
| organism | a living thing that has (or can develop) the ability to act or function independently |
| Organ system | A group of organs that work together in performing vital body functions. |
| ecology | the study of interactions among organisms and between organisms and their environment |
| natural_selection | a natural process resulting in the evolution of organisms best adapted to the environment |
| evolution | The gradual change in a species over time. |
| DNA | the genetic material that carries information about an organism and is passed from parent to offspring |
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