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Stack #4557157
| Question | Answer |
|---|---|
| Population | a group of organisms of the same species living in the same area |
| Community | groups of organisms of different species, living in the same area. Interactions include competition, predation, symbiosis |
| Ecosystem | a combination of the community and the physical features of the area (soil, pH, water, weather) |
| Biome | a major ecosystem that occurs over a large area of land; takes into account latitude and longitude and climate |
| Niche | how and where an organism lives and the job it performs. This includes diet, activity, how it affects energy flow in systems. THIS IS NOT THE SAME AS HABITAT |
| Food chain | the path of energy through the trophic levels of an ecosystem |
| Food web | an interconnected group of food chains |
| Trophic level | a specific level in an ecosystem based on the organism’s source of energy (includes producers, consumers, decomposers) |
| Competition | an interaction between two organisms where they compete for resources |
| Mutualism | an interaction between two organisms where they both benefit |
| Commensalism | an interaction between two organisms where one benefits and the other is neither harmed nor benefited |
| Parasitism | an interaction between two organisms where the parasite benefits and the host is harmed |
| Biotic | a living factor in an ecosystem |
| Abiotic | a non-living factor in an ecosystem |
| Limiting factor | something in an ecosystem that limits the growth of a population |
| Carrying capacity | the largest size a population can be where all organisms have resources to be successful |
| Invasive species | or non-native species: a specie that does not belong in a specific ecosystem naturally; an introduced species that often exploits it resources and outcompetes the native species in the area |
| 10% energy transfer rule | explains the loss of 90% of energy between trophic levels; only 10% of the energy available at one level is transferred to the next level |
| Detritivore | obtain energy from organic waste and dead bodies; feeds on dead/decaying matter (examples: worms) |
| Aquatic | ‘relating to’ water |
| Terrestrial | ‘relating to’ land |
| Producer or Autotroph | organisms that can make their own food by photosynthesis |
| Heterotroph | organisms that consume producers or other consumers for food |
| Habitat | the specific place where an organism lives |
| Biodiversity | the number of different types of species living in a given area |