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what is the cost-benefit relationship regarding sewage treatment as a method to fight water pollutionto treat sewage is much cheaper for society the
what are the main types of wastethe waste can be classified into main types each of them carrying its own dissimilar environmental problem organic
what are the main characteristics of the age pyramids of developed countries in a stabilized human population the age pyramid has a narrower base as
what are the analyses provided by the study of human age pyramidsthe study of human age pyramids can give the following analyses proportion of
what are age pyramidsage pyramids are graphical representations in form of superposed rectangles every representing the number of individuals
how different is the growth according to the biotic potential of a viral population from the growth according to the biotic potential of a bacterial
what is the relationship among environmental resistance and the population growth according to the biotic potential curve and the real population
how do populations of predators and prey vary in predatismwhenever a predator population enhances at the first moment the prey population tends to
how do the availability of water and light and the climate affect the growth of a population the availability of water and light and the climate are
what are the main limiting factors for the growth of a populationthe factors that limit the growth of a population can be divided into biotic factors
what is population growth ratepopulation growth rate pgr is the percent variation among the number of individuals in a population at two different
what is population densitypopulation density is the relation among the number of individuals of a population and the area or volume they occupy for
what is a populationin biology a population is a set of individuals of the similar species living in a given place and in a given
how do biodiversity the total number of living beings and the biomass respectively vary during the ecological successionbiodiversity the number of
what is the climax stage of an ecological successionthe climax stage is the stage of the ecological succession in which the community of an ecosystem
what are pioneer species what is the role of the pioneer speciespioneer species are those first species that colonize places where before there were
what is ammensalimammensalism is the ecological interaction in which an individual harms another without obtaining advanatage ammensalism is an
is herbivorism a form of predatismherbivorism is a type of predatism in which first order consumers feed from producers plants or algae for instance
what is predatism predatism is the ecological interaction in which one individual mutilates or kills another to get food predatism is an inharmonious
what are some examples of parasitismclassical instances are the parasites of humans host as the trypanosome that causes chagas disease the hiv virus
what is parasitismparasitism is the ecological interaction in which a being lives at the expense of another the parasite often does not cause
what are some examples of interspecific competitionexamples of interspecific competition are the dispute between vultures worms flies and
what benefits can commensalism offer to a speciescommensalism may include obtainment of food for instance the innocuous bacteria of the human gut
what is commensalismcommensalism is the ecological interaction in which one individual advantage while the other is neither benefited nor harmed
what is mutualism mutualism is the ecological interaction in which both participants advantage and that is obligatory for their survival mutualism is