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Ecology terms
grade 9 Ecology terms & definitions G.P.M.
| Term | Definition |
|---|---|
| Ecology | study of how organisms interact with each other and their envirormemt in a system. |
| 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. |
| natural Ecosystem | A natural ecosystem is neither planned nor maintained by people. |
| Artificial Ecosystem | Artificial ecosystem is plant and maintained by people. Examples are cities, zoos, Aquarium, Farms. |
| species | A group of similar organisms in an ecosystem that can reproduce with each other. |
| population | A group of members of the same species that live in the same area. |
| community | population of different species that live and interact in the same area. These species compete for resources within that area. |
| Niche | all the interactions of a given species with its ecosystem. |
| ecosystem | any network of interacting living & non-living facters. |
| Biome | Large geographical region that contains similar ecosystems. |
| terrestrial | Land-based |
| Aquatic | Water-based |
| Biosphere | a part of our planet, including water,land and air, where life exists. Biomes comine to form this |
| Herbivores | an animal that ONLY eats plants. |
| Carnivores | an animal that eats mostly meat. |
| Omnivores | an animals that eats both plants and meat. |
| Predators | animals that catch 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. |
| Deteitivores | a consumer that feeds on organic matter |
| Decomposers | a special group of consumers that break down |
| 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. |
| Food chains | show 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. |
| Photosynthesis | The process plants use to produce carbohydrates from carbon dioxide, water, and sunlight. (CO2+H20→ sugar + O2) |
| Biodiversity | Number and range of different organisms in an area. |
| Toxins | A substances created by plants and animals that are poisonous (toxic) to humans. |
| Bioaccumulation | gradual build-up of chemicals in an organism’s body |
| 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 |
| 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 |
| Environment | all living things and nonliving things that exist on Earth |
| Habitat | The natural home or environment of an animal, plant, or other organism. |
| Food webs | A pictorial representation of the feeding relationships among organisms in an ecosystem. |
Created by:
ge363mu
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