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Ecology Vocabulary
| Term | Definition |
|---|---|
| Ecology | The study of how living things interact with one another and with their environment. |
| Biotic | a living part of an ecosystem |
| Abiotic | a nonliving part of an ecosystem |
| 5 levels of environmental organization | Organism, Population, Community, Ecosystem, Biosphere |
| Organism | obtains food, water, shelter, and other things it needs to live, grow, and reproduce from it surroundings |
| Population | all members of the same species that live in a specific area |
| Community | different populations that live together in an area |
| Ecosystem | the community and abiotic factors together |
| Biosphere | regions of the surface atmosphere and hydrosphere of the Earth occupied by living organisms |
| Producer/Autotroph | Organisms that use sunlight directly to make food |
| Consumer/Heterotroph | Organisms that eat other organisms |
| Herbivore | an animal that only feeds on plants |
| Carnivore | an animal that only feeds on other organisms (meat) |
| Omnivore | an animal that feeds on both plants and animals |
| Scavenger | omnivores that eat dead plants and animals |
| Decomposer | organisms that get energy by breaking down dead organisms |
| Food Web | a diagram that shows feeding relationships between organisms in an ecosystem |
| Food Chain | a diagram that shows how energy in food flows from one organism to another |
| Energy Pyramid | a diagram that shows an ecosystem's loss of energy |
| Limiting Factor | a resource that is so scarce that it limits the size of a population |
| Carrying Capacity | largest population that an environment can support |
| Predator | Organism that eats prey |
| Prey | Organism that gets eaten |
| Predator Adaptions | Speed, color that camouflages them, small senses, claws, teeth, fangs, stingers |
| Prey Adaptions | Camouflage, Warning Coloration, retreating |
| Symbiosis | a close, long-term association between two or more species |
| Mutualism | a symbiotic relationship in which both organisms benefit |
| Commensalism | a symbiotic relationship in which one organism benefits and the other is unaffected |
| Parasitism | a symbiotic association in which one organism benefits while the other is harmed |
Created by:
medw30
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