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Ecosystems Vocab

TermDefinition
Ecosystem A community interacting with the nonliving parts of its enviornment
Community All the populations of different species that live in the same place at the same time and interact with others
Population Organsims of one species that live in the same pleace at the same time and can reproduce
Biosphere All parts of earth were life exists, including air, land and water
Abiotic factor Nonliving physical features of the enviornment, including soil, water, temperature, air, light, wind, and minerals
Biotic factor Living organisms in the environment, such as plants and animals
Food chain A model used to show how energy from food passes from one organism to another
Food web A model used to describe a series of overlapping food chains
Ecological pyramid a model used to describe the transfer of energy through a community
Niche The role of an organism in an ecosystem
Limiting factor Any biotic or abiotic factor that restricts the numberof individuals in a population
Carrying capacity The largest number of individuals that an enviornment can support and maintain over time
Predator The animal that catches and eats other animals
Prey The animal being eaten by the predator
Symbiosis A close relationship between two organims that live together
Mutualism A symbiotic relationship that benefits both partners
Commensalism A symbiotic relationship that benefits one partner but not the other, no harm
Parasitism A symbiotic relationship that benefits the parasite but harms the parasite's partner
Producer (authotroph) Organisms that make their own food
Consumer (heterotroph) Organisms that must acquire their food
Herbivore Organisms that only eat plants
Carnivore Organisms that only eat meats
Scavenger Organisms that eat animals killed by other animals
Decomposer Organisms that break down dead plant and animal material and return it to teh soil
Water cycle The continous movement of water in the biosphere through evaportaion, condensation, precipation.
Omnivore Organisms that eat plants and meats
Created by: seis6513
 

 



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