Flashcards: Kessinger Bio Ch. 1
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Created by:
jkessinger3 on September 29, 2008
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Description:
General Biology
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Terms | Definitions |
|---|---|
 Organism | A living thing |
| Biology | The study of all living things |
| Unicellular | Having only one cell |
| Multicellular | Made of more than one cell |
| Differentiation | Process through which a cell develops specific functions |
| Homeostasis | Maintatining stable internal conditions |
| Reproduction | Species making more of its own kind |
| DNA | Large molecule made of nucleic acids that stores hereditary information |
| Gene | Segement of DNA that codes for a specific protein |
| Sexual Reproduction | Process in which hereditary information from two parts of a single organism or from two organisms of the same species is combined |
| Asexual Reproduction | Process in which the hereditary information from two organisms in not combined |
| Evolution | Organisms adapting/changing over time |
| Natural Selection | Organisms with more favorable traits are more likely to reproduce and survive,"survival of the fittest" |
| Ecology | The study of organisms and their interaction with each other and the environment |
| Ecosystems | Environmental communitites |
| Autotrophs | Organisms that obtain energy from making their own food |
| Heterotrophs | Organisms that must take in food to meet their energy needs |
| Metabolism | Sum of all the chemical processes that occur in an organism;burning food for energy |
| Magnification | Increase in an objects apparent size |
| Resolution | The clarity of an object |