Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
biology ch. 20 terms
| Term | Definition |
|---|---|
| predation | an interaction between two species in which one species, the predator, feeds on the other species, the prey |
| interspecific competition | a relationship between two species in which both species complete for limited resources such that both species are negatively affected by the relationship |
| sybiosis | a relationship in which two different organisms live in close association with each other |
| parasitism | a relationship between two species in which one species, the parasite, benefits from the other species, the host, which is harmed |
| mutualism | a relationship between two species in which both species benefit |
| commensalism | a relationship between two organisms in which one organism benefits and the other is unaffected |
| species richness | the number of different species in an area or community |
| species evenness | a measure of the relative adundance of each species in an ecological community |
| species-area effect | a pattern in which the number of species in an area increases as the area increases |
| disturbance | in ecology; an event that changes a community by removing or destroying organisms or altering resource availability |
| stability | the tendency of a community to maintain a relatively constant structure |
| ecological succession | a gradual process of change and replacement in a community |
| primary succession | succession that begins in an area that previously did not support life |
| secondary succession | the process by which one community replaces another community that has been partially or totally destroyed |
| pioneer species | a species that colonizes an uninhabited area and that starts an ecological cycle in which many other species become established |
| climax community | a final, stable community in equilibrium with the environment |
Created by:
eifertmaddy15
Popular Biology sets