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Ch. 5 EMS VOC
Chapter 5 Lessons 3-4 - Mr. Pasone's EMS
| Term | Definition |
|---|---|
| Primary Producer | An organism that can capture energy from the Sun or from chemicals and store it; also called autotroph |
| Photosynthesis | The process by which primary producers use sunlight to convert carbon dioxide and water into sugars, releasing oxygen |
| Chemosynthesis | The process by which bacteria use energy stored in bonds of hydrogen sulfide to convert carbon dioxide and water into sugars |
| Consumer | An organism that relies on other organisms for energy and nutrients; also called a heterotroph |
| Cellular Respiration | The process by which organisms use oxygen to release the chemical energy of sugars |
| Herbivore | An organism that eats plants |
| Carnivore | An animal that kills and eats other animals |
| Omnivore | An organism that eats both plants and animals |
| Detritivore | An organism (e.g., a millipede or soil insect) that scavenges the waste products or dead bodies of other community members |
| Decomposer | An organism (e.g., a fungus or bacterium) that breaks down nonliving matter into simple parts that can then be taken up and reused by primary producers |
| Trophic Level | A rank in a feeding hierarchy |
| Biomass | The total number of living tissue in a tropic level |
| Food Chain | A linear series of feeding relationships |
| Food Web | A diagram of feeding relationships and energy flow showing the paths by which nutrients and energy pass from one organism to organism as one consumes another |
| Keystone Species | A species that has a strong or wide-ranging impact on a community |
| 4 - START ) Succession | A somewhat predictable series of charges over time in a community |
| Primary Succession | The somewhat predictable series of changed in a community that follows a disturbance so severe that no vegetation or soil life remains |
| Pioneer Species | One of the first species to colonize newly exposed land |
| Secondary Succession | The somewhat predictable series of changes in a community that follows a disturbance (e.g., a fire, logging, or farming) that dramatically alters the community but does not destroy all vegetation or soil life |
| Invasive Species | A nonnative species that spreads widely in a community |