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Ecology terms 2025
Grade 9 ecology terms and definitions
| Term | Definition |
|---|---|
| Ecology | Study how organisms interact with each other as well as with their environment in a system |
| Environment | All living things and non-living things that exist on earth |
| Habitat | The natural home or environment of an animal, plant, or other organism |
| Abiotic | non living things, physical things such as , minerals, air or things measured such as temperature, hours of daylight, salt concentration |
| Biotic | living, these factors are organism such as plants, animals, mushrooms, bacteria, algae |
| Ecosystem | A complex self regulating system in which living things interact with living and non living things. |
| Natural ecosystem | A natural ecosystem is neither planned nor maintained by people. |
| Artificial ecosystem | Artificial Ecosystem is planned and maintained by people. |
| Herbivores | An animal that eats ONLY plants. |
| Carnivores | An animal that eats mostly meat |
| Omnivores | An animal that eats both plants and meat. |
| Predators | animals that catches and feeds off of other live animals |
| Scavengers | An animal that mostly eats decaying biomass |
| Parasites | obtain their food by feeding off another organism which continues to live |
| Detrivores | A consumer that feeds on organic matter |
| Population | A group of members of the same species that live in the same area. |
| Community | populations of different species that live and interact in the same area. |
| Ecosystem | interaction of community and surrounding abiotic components |
| Biome | Large geographical region that contains similar ecosystems |
| Biosphere | A part of our planet, including water, land and air, where life exists. Biomes combine to form this... |
| Biodiversity | Number and range of different organisms in an area. |
| Toxins | harmful substances that contaminate the air, water, soil, and food, potentially causing health problems for organisms. |
| Bioaccumulation | gradual build-up of chemicals in an organism’s body |
| Photosynthesis | The process plants use to produce carbohydrates from carbon dioxide, water, and sunlight. |
| Respiration | the operation in which organisms within a specified ecosystem use the process to convert organic carbon to carbon dioxide. |
| Extirpated | species that no longer exist in a particular region but still occurs elsewhere |
| Amphibious | born in water, breathing with gills but can live on land or in water |
| Autotroph | Organisms that can make their own food from basic nutrients and sunlight. Examples:green plant,algae |
| Heterotroph | organisms that must feed on other organisms to obtain energy |
| Carrying capacity | maximum number of individuals that an ecosystem can support without reducing its ability to support future generations of the same species |
| Commensalism | type of symbiosis in which one species benefits from a relationship without helping or harming the other species. |
| Mutualism | A type of symbiosis in which both species benefit from the symbiotic partnership. |
| Symbiosis | Close interaction between two different species in which members of one species lives in on or near members of another species |
| Terrestrial | land-based animal |
| FOOD WEBS | A pictorial representation of the feeding relationships among organisms in an ecosystem. |
| Food chains | show two important things: A step-by-step sequence of who eats whom in an ecosystem. The one-way flow of energy from the producer to the top level consumer. |
Created by:
sc698ol
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