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Stack #167142
ecosystem
| Question | Answer |
|---|---|
| environment | everything that affects an organism during its lifetime |
| ecosystem | A community and its physical environment; interaction of species and their environment. |
| community | interacting groups of different species; all the populations of organisms living together in an envirnment |
| biome | A plant and animal ecosystem that covers large geographic areas. Climate plus the plants and animals adapted to living in that climate distinguishes each type. |
| population | A group of individuals of the same species living in one area at the same time. |
| niche | The role an organism plays in its ecosystem. |
| decomposers | break down tissue of dead organisms, use some nutrients as food, and release simple nutrients to the soil. |
| habitat | the specific place where an organism lives |
| extinction | the death of a species; last individual in population dies and organism is gone forever |
| endangered species | those species having populations so small that they are in immediate jeopardy of becoming extinct |
| threatened species | Species that are likely to become endangered or could become extinct if a critical factor of their environment changed |
| limiting factors | Any limited resources (soil conditions, rainfall, food, shelter...)that affects population size |
| producers | Organisms that use sunlight to make the food they need from carbon dioxide and water. |
| consumers | Organisms that get energy by eating other organisms. |
| herbivore | plant eater, 1st level consumer in food chain |
| carivore | animal eater, 2nd level consumer in food chain |
| omnivore | Organism that eats both plants and animals. |
| food chain | models how consumers in an ecosystem are connected to one another according to what they eat |
| food web | models the relationships between many different food chains in a single ecosystem |
| energy pryamid | shows the amount of energy available(10%) to pass from one level of a food chain to the next higher level |
| competition | the struggle among organisms to obtain the resources they need, including food, to survive and reproduce |
| prey | animals that are hunted for food |
| predator | animals that hunt other animals for food |
| camouflage | patterns in animal body color used for survival |
| symbiosis | any long-term close interaction between two or more different species |
| mutualism | a symbiotic relationship that benefits both species |
| commensalism | a form of symbiosis that benefits one organism without affecting the other organism |
| parasitism | relationship between two species in which one benefits and the other species is harmed |
| instinct | a behavior that an organism inherits or has at birth |
| learned behavior | behavior that is taught directly or indirectly |
| exotic animals | nonnative animals imported into another country |
| estuary | a place where a fresh water river empties into an ocean |
| wetlands | water ecosystems that include saltwater marshes, mangrove swamps, and mud flats |
Created by:
hilleddiem
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