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Unit 1 - AP Environmental Science (no biomes)

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limiting resource

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Terms in this set (91)

limiting resource

a resource that a population cannot live without and which occurs in quantities lower than the population would require to increase in size

resource partitioning

where two species divide a resource based on differences in the species' behavior or morphology

refers to the use of one species as a resource by another species

typically kill their prey and consume most of what they kill

consumes plants as prey

live on or in the organisms they consume

organisms that lay eggs inside other organims

benefits two interacting species by increasing both species' chances of survival or reproduction

a type of relationship in which one species benefits but the other is neither harmed nor helped

symbiotic relationship

the relationship of two species that live in close association with each other

keystone species

a species that plays a role in its community

predator-mediated competition

competition in which a predator is instrumental in reducing the abundance of a superior competitor, allowing inferior competitors to persist

ecosystem engineers

species that create or maintain habitat for other species

Permeable layers of rock and sediment that contain groundwater in many small spaces.

Image: Aquifers

Unconfined Aquifer

Water can flow easily in and out of the aquifer. Porous rock covered by soil

Image: Unconfined Aquifer

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