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What is 1 + 3?
the systematic study of how organisms interact with one another and with their environment.
biotic (other organisms) and abiotic ( physical factors).
group of individuals of the same species occupying a common geographical area
two or more populations of different species occupying the same geographical area Populations and communities include only biotic factors
a community plus its abiotic factors, e.g. soil, rain, temperatures, etc.
the portion of the earth that contains living species. It includes the atmosphere, oceans, soils and the physical and biological cycles that affect them
two or more populations of different species occupying the same geographical area.
the physical place where an organism lives
the functional role of an organism in a community, its job or position.
two species that don't interact at all.
beneficial to one species but neutral to another
an interaction that is beneficial to both species
an interaction that benefits one species and is detrimental to another. Note that the host is generally not killed.
an interaction beneficial to one species and detrimental to another. In this case the prey is killed.