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U3L03
AP Biology
| Question | Answer |
|---|---|
| An organism that transmits pathogens from one host to another. | Vector |
| The biodiversity pattern that shows that the larger the geographic area of a community is, the more species it has. | Species-area curve |
| A type of succession that occurs where an existing community has been cleared by some disturbance that leaves the soil or substrate intact | Secondary succession |
| The concept that moderate levels of disturbance can foster greater species diversity than low or high levels of disturbance. | Intermediate disturbance hypothesis |
| A natural or human-caused event that changes a biological community and usually removes organisms from it. Disturbances, such as fires and storms, play a pivotal role in structuring many communities. | Disturbance |
| A model of community organization in which mineral nutrients influence community organization by controlling plant or phytoplankton numbers, which in turn control herbivore numbers, which in turn control predator numbers. | Bottom-up model |
| A species, often introduced by humans, that takes hold outside its native range. | Invasive species |
| The concept that long food chains are less stable than short chains | Dynamic stability hypothesis |
| The concept that the length of a food chain is limited by the inefficiency of energy transfer along the chain. | Energetic hypothesis |
| The pathway along which food energy is transferred from trophic level to trophic level, beginning with producers. | Food chain |
| An index of community diversity symbolized by H and represented by the equation H = -(pA ln pA + pB ln pB + pC ln pC + . . .), where A, B, C . . . are species, p is the relative abundance of each species, and ln is the natural logarithm. | Shannon diversity |
| The number of species in a biological community. | Species richness |
| A symbiotic relationship in which both participants benefit. | Mutualism |
| The larger participant in a symbiotic relationship, often providing a home and food source for the smaller symbiont. | Host |
| An interaction in which an organism eats parts of a plant or alga. | Herbivory |
| A type of mimicry in which a harmless species looks like a species that is poisonous or otherwise harmful to predators. | Batesian mimicry |
| An interaction between species in which one species, the predator, eats the other, the prey. | Predation |
| The sum of a species' use of the biotic and abiotic resources in its environment. | Ecological niche |
| Competition for resources between individuals of two or more species when resources are in short supply. | Interspecific competition |
Created by:
jtaylor422
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