bio(habitat/niche/succesion/abiotic vs.biotic factors)
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32 terms
Terms | Definitions |
|---|---|
 habitat | an area in which an organism lives |
| abiotic factors | physical or nonliving factors that shape an ecosystem |
| biotic factors | living or biological influences on an organism |
| predation | interaction in which one organism feeds off of another |
| predator | organism that does feeding |
| prey | organism that is fed on or eaten |
| mutualism, commensalism, parasitism | 3 types of symbiotic relationships |
| canopy | layer of foliage or trees above everything; highest tree level in the forest |
| understory | second layer of trees and vines in the forest |
| deciduous trees | trees that shed their leaves during a certain season every year |
| coniferous trees | trees that produce seed-bearing cones and have needle-shaped leaves |
| conifers | a nickname for coniferous trees |
| evergreens | another name for coniferous trees |
| humus | a material formed from decaying leaves and other organic matter (found in soil of temperate forest) |
| taiga | another name for boreal forest |
| permafrost | a layer of permanently frozen subsoil |
| microclimate | a climate in a small area that differs from the climate around it |
| biome | a complex of ecosystems with similar conditions and communities |
| adaptation | an inherited characteristic that increases an organism's ability to survive and reproduce |
| tolerance | the ability to survive and reproduce under conditions that differ from their optimal ones |
| mutualism | symbiotic relationship in which both organisms benefit (ex. shark and remora) |
| commensalism | symbiotic relationship in which one organism benefits and the other is neither helped nor harmed |
| parasitism | a symbiotic relationship in which one organism feeds off of another and harms it (ex. mosquito) |
| niche | the part of a habitat an organism lives in including the role it plays in its habitat |
| weather | condition of earth's atmosphere at a particular time and place |
| climate | average year-after-year conditions of temperature and precipitation in a particular region |
| polar zone | cold climate zone where the sun's rays strike earth at a very low angle |
| temperate zone | moderate climate zone between polar zones and tropics |
| tropical zone | warm climate zone that receives direct or nearly direct sunlight year round |
| resource | any necessity of life such as water, nutrients, light, food or space |
| competitive exclusion principle | ecological rule that states that no two species can occupy the same exact niche in the same habitat at the same time |
| symbiosis | relationship in which two species live closely together |
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