Environment Science

a )Nt N0 (ert ) whereNt Population at time t 2006 6 billionN0 Starting universe size of it 6 billion humansr under(a)lying Rate of Natural add-on 1t Time 46 yearsNt community at 2005 humansbThe recent advances in medicine public health and hygiene have move the death tread of Sweden . in addition , the birth rate is controlled by elbow populate of public sentiency , reading and family planningc ) Ecological Foot crisscross is a resource charge cock that measures how much land and water supply argona a human tribe requires to produce the resources it consumes and to absorb its wastes under prevail technology . It is the kernel of productive land field of honor inevitable to sustain unrivalled mortald The bionomic foot print of the universe today is approximated to be 5 earths .We master(prenominal)tain this miss by liquidating the planet s ecological resourcese ) World population and footprint 6B 2 .3 ha /person or 5 earthsCurrent U .S population and footprint0 .28B 9 .7 ha /personRest of the world 5 .72B 4 .85 ha /person (9 .7 /20 .28 /6 0 .046667 9 .7 0 .452667 5 .07633 5 11 .03551 earths5 .72 /6 0 .953333 4 .85 4 .623667 2 .35 .07633 ha /person2 . Evolution and ecologya ) whizz of the roughly misunderstood toll is the phrase extract of the fittest . literally translated , it subject matter survival of the survivors , a meaningless control in the biologic smack . Survival of the fittest in the biological sense means that entirely those fit enough to be able to purge give the bounce ensure the continuity of their species . Those bad , those who die earlier they post pass on their communicable data forget eventually cease to exist . A very intimately cause of this is in the peacock s buns feathers These tail feathers atomic number 18 bright colored , hereby diminish their chances of survival .

til now , the main purpose of these feathers is to attract likely mates , increase their chances to be sick and ensuring the continuity of their lineb ) Trophic direct is the position an organism holds in the food chain or web . In a simplified ecosystem composed of food shrubs , rabbits , and lynxes , we slew find tercet trophic levels . First is the knowledgeability species , the primal maker or autotroph which produces capacity thru renewal of environment factors , in this drive the food shrub . sustenance upon the food shrub are the rabbits , leading to the second trophic level . The rabbits are heterotrophs considered to be the ancient consumers since they obtain energy or persist upon the primary producer The lynxes belong to the tercet trophic level . They are also heterotrophs that are thirdhand consumers , feeding upon the primary consumers , which in this case are the rabbitsd )The lynxes and rabbits belong to a predator guttle relationship Predators and prey can influence one other s evolution . The resulting pattern follows the Lotka-Volterra lay developed individually by Alfred Lotka and Vito Volterra in the 1920 s . This model shows that both(prenominal) predator and...If you neediness to get a full essay, order it on our website: Ordercustompaper.com

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