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16 terms

Ecology

Science Olympiad Ecology
STUDY
PLAY
ecology
the systematic study of how organisms interact with one another and with their environment.
environment
biotic (other organisms) and abiotic ( physical factors).
biotic
other organisms.
abiotic
physical factors.
population
group of individuals of the same species occupying a common geographical area
community
two or more populations of different species occupying the same geographical area Populations and communities include only biotic factors
ecosystem
a community plus its abiotic factors, e.g. soil, rain, temperatures, etc.
biosphere
the portion of the earth that contains living species. It includes the atmosphere, oceans, soils and the physical and biological cycles that affect them
community
two or more populations of different species occupying the same geographical area.
habitat
the physical place where an organism lives
niche
the functional role of an organism in a community, its job or position.
neutral
two species that don't interact at all.
commensalism
beneficial to one species but neutral to another
mutualism
an interaction that is beneficial to both species
parasitism
an interaction that benefits one species and is detrimental to another. Note that the host is generally not killed.
predation
an interaction beneficial to one species and detrimental to another. In this case the prey is killed.