Ecology

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Terms in this set (...)

abiotic factor
Abiotic factors are the non-living parts of an organism's habitat.
acid rain
Rain containing nitric and sulfuric acids
biological magnification
Increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web
biomass
Total amount of living tissue within a given trophic level
biome
A group of ecosystems that share similar climates and typical organisms
biotic factor
Any living part of the environment with which an organism might interact
biosphere
Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.
carnivore
A consumer that eats only animals.
carrying capacity
Largest number of individuals of a population that a environment can support
commensalism
A relationship between two organisms in which one organism benefits and the other is unaffected
consumer
An organism that obtains energy by feeding on other organisms
decomposer
An organism that breaks down wastes and dead organisms
ecological succession
series of gradual changes that occur in a community following a disturbance
ecology
Scientific study of interactions among organisms and between organisms and their environment
ecosystem
A biological community of interacting organisms and their physical environment.
food chain
A series of steps in which organisms transfer energy by eating and being eaten
food web
A community of organisms where there are several interrelated food chains
global warming
An increase in the average temperature of the earth's atmosphere (especially a sustained increase that causes climatic changes)
habitat
Place where an organism lives
herbivore
A consumer that eats only plants.
limiting factor
Any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms.
mutualism
A relationship between two species in which both species benefit
niche
An organism's particular role in an ecosystem, or how it makes its living.
ozone layer
Layer of the stratosphere with a high concentration of ozone; absorbs most of the Sun's harmful ultraviolet radiation
parasitism
A relationship between two organisms of different species where one benefits and the other is harmed
pollutant
A substance that causes pollution.
producer
An organism that can make its own food.
symbiotic relationship
interaction beween organisms

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