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Ecology the study of how organisms interact with each other in their environments
species group of individuals that interbreed and produce fertile offsprings
population species that live in the same area at the same time
community all of the population in a particular area
ecosystem all living things and their physical environments within a particular area
biosphere all parts of earth that host life, with all of its organisms and environments
biotic factors parts of the ecosystem that are living or used to be living
abiotic factors are used and consumed by organisms. have never been living
habitat a species habitat is its abiotic and biotic elements around it
resource anything an organism needs---nutrition, shelter, breeding sites, etc.
population size the individual numbers of
population density describes the number of individual organisms within a population per unit area.
population distribution describes how organisms are arranged within the area.
age structure describes the relative numbers of organisms of each age and population,
age structure diagrams visual tools scientists use to show the age structure of populations
sex ratio the populations portion from males to females
Created by: SkylaGrube
 

 



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