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EP Ch 8
| Question | Answer |
|---|---|
| Coevolution | 2 species develop adaptations to increase the benefit of the relationship |
| Population | all of one species in an area |
| Density | number of individuals per unit area |
| Dispersion | random(spread out), clumped, even |
| Symbiosis | close relationship between two organisms |
| Parasitism | one organism benefits, the other is harmed, usually not killed |
| Commensulism | one organism benefits the other is unaffected |
| Mutualism | both organisms benefit |
| Predator / prey | example, predator kills prey |
| Niche | roles and organism plays, includes home, interactions, and environmental factors |
| Density independent deaths | deaths not effected by how close together organisms are, ex: weather related deaths |
| Density dependent deaths | deaths effected by closeness of organisms, ex: disease |
| Reproductive potential | maximum number of offspring a species produces, high potential=numbers increase rapidly, effected most by earlier reproductive age |
| Exponential growth | population increases rapidly, ex: |
| Carrying capacity | determined by most limited resources, maximum population an ecosystem can support |
| Habitat | where an organism lives |
| Competition | both organisms are harmed, does not occur between different ecosystems |
| Generation time | average age at which a species reproduces |
| Limiting resource | resource in lowest supply |
| Niche restriction | using only part of available resources |
| Population growth | birth rate minus death rate |
Created by:
evroman
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