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chapter 1

population and communities

organism a living thing
habitat a place that provides the things that organisms need to live grow and reprodoce
biotic factor a living part of an organisms habitat
abiotic factor a nonliving part of an organisms habitat
photisynthisis the process in which organisms use water along with sunlight and carbon dioxide to make their food
species a group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce
populatioin all the members of one species in a particular area
community all different population that live together in a area
ecosystem the community of organism that live in particular area along with thier nonliving surroundings
ecology the study of how living things interact with each other and thier environment
estimate is an approximation of a number bassed on reasonible assumptions
birth rate number of births in a population in a certain amont of time
death rate number of deaths in a population in a certain amont of time
immtgration moving into a population
emigration leaving a population
population density the number of individuals in a specific area
limiting factor an environmental factor that causes a population to decrease
carrying capacity the largest population that an area can support
natural selection a process by which characteristics that make an individual better suited to its enviorment become more common in a species
Created by: wnewberg