Question
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A population is a group of individuals from the same species. A community is a group of populations
Explanation:
A population is a group of individuals of the same species living in the same area, at the same time. It can be characterized by:
Population size: the number of individuals in the population
Population density: how many individuals are in a particular area
Population growth: how the size of the population is changing over time.(See here and here for more detailed content)
A community is an association of populations living in the same area, at the same time. Those species can interact in various way (ex: predation, parasitism, mutualism, ...)
A community can be characterized, among others, by:
Richness: number of species in the community
Evenness: importance of each species in the community
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