click below
click below
Normal Size Small Size show me how
ecology
for ecology test
| Term | Definition |
|---|---|
| ecology | study of how animals work together with the animals and the environment |
| abiotic factor | any nonliving part of the environment |
| biotic factor | any living or once living organism |
| population | all individual species that live in the same area |
| community | all of the population of the species in a given area that interacts in some way |
| ecosystem | all the communities in a given area of biotic and abiotic factors |
| biosphere | top part of the earths crust that supports life on earth |
| population density | # of individuals in a population occupies an area of limited size |
| limiting factor | any factor that limits the organisms that can live in a given area |
| symbiosis | interactions between two or more species including mutualism,commenalism,parasitism |
| niche | role of an organism in the ecosystem |
| habitat | place where an organism lives (the organisms job) |
| food chain | model that describes how energy passes form one organism to the next |
| water cycle | the cycle in which water goes in with precipitation |
| food web | model that describes how energy from food moves through a community a series of over lapping food chains |