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Biology STAAR Cat 5
Biology STAAR Vocabulary Category 5
| Term | Definition |
|---|---|
| Abiotic | Nonliving |
| Biotic | Living |
| Ecosystem | All the organisms living together in a physical environment in a certain area. |
| Organism | Individual living things |
| Population | All the members of one species living together in the same place at the same time. |
| Species | A group of organisms that are closely related and are able to mate and produce fertile offspring, |
| Ecological Succession | The gradual process of change and replacement of the types of species in a community |
| Pioneer Species | The first plants and animals to live in a newly-available ecosystem such as lichens and mosses |
| Primary Succession | Change that occurs where there are no current ecosystems |
| Secondary Succession | Change that occurs in a current Ecosystem |
| Bacteria | Single-celled, prokaryotic organisms |
| Decomposer | An organism that eats dead and decaying matter, returning nutrients to soil and water |
| Microorganism | Organisms that can only be seen in a microscope includes bacteria and fungi |
| Phytoplankton | Microscopic cyanobacteria and plant-like protists that do photosynthesis |
| Biome | A large area with a specific climate and certain plant and animal communities |
| Genetic Variation | The different genotypes within a population. |
| Commensalism | A relationship where one species benefits from another species and that species is not harmed or helped. |
| Competition | A relationship between two species who use the same limited resource |
| Mutualism | A close relationship in which two different species provide a benefit to each other. |
| Parasitism | A relationship in which one organism lives in or on another organism and feeds off that organism |
| Predation | A relationship in which one organism eats another. |
| Autotroph | An organism that can make its own energy; also called a producer |
| Food Chain | A simple, one-directional diagram showing energy flow |
| Food Web | A complex diagram that shows several feeding relationships |
| Heterotroph | An organism that must eat another organism or detritus to get energy; also called a consumer |
| Carbon Cycle | The process in which carbon is cycled between the atmosphere, land, water, and organisms - fossil fuels formed from ancient dead organisms |
| Fossil Fuel | An energy sources formed from ancient dead organisms. |
| Nitrogen Cycle | The process in which nitrogen cycles between the atmosphere, bacteria and other organisms - nitrogen fixed by bacteria into a usable form for plants and animals |
Created by:
anareyes
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