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Currently, we also know that the air density changes with time, ie, the air is thinner at the top of a mountain than at its base. So the climbers carry oxygen when climbing is large, ie, when the mountain is steep, as the case of Paraná Waldemar Nicleivicz in their climbing Everest and K2. Physics Density is the ratio of the mass of the object volume. Thus, considering two objects of the same volume, the greater mass will have a density- ity greater. ACTIVITY After reading the text, answer the questions: Text 1: In regions of Africa, Asia and South America, many people live permanently in places very high, and some live in the Andean mountains up to 5000 m above sea level. People generally would not live comfortably in these conditions, but they are born and live there suffer changes in the body that allow them to stay healthy. The chest grows longer, thus increasing lung capacity, and in addition, the blood contains more red blood cells than the normal capacity of the blood of other people and carry therefore more oxygen.(Ward, 1988, p 44). Text 2: The lungs of humans act as if they were a bellows or a harmonica, the diaphragm plays the hand that presses and releases this bellows. Upon inspiration, the lungs increase in size decreases and the pressure within them. The bodies always move in the direction of lower pressure, so the air enters the lungs. The opposite occurs during expiration, the diaphragm pressing the lungs causes them to contract, reducing their size and increasing the internal pressure thereof. In this case, the air is expelled, because the pressure out of the lungs is reduced.(Adapted from Ward, 1988) Charles Darwin (1809-1882), in his theory of evolution says that individuals, beings, adaptamse the environment in which they live and that these adaptations are transmitted to subsequent generations. Lamarck(1744-1829), a predecessor of Darvim also addressed the evolution. The difference between them is that for Lamarck adaptations are transmitted to the next generation, whereas Darwin speaks of natural selection, where the fittest survive and tend to have a greater number of offspring, and these offspring will also have a higher degree of adaptation. In the case of humans living in inhospitable regions as in text 1, could be used to corroborate the theory of Darwin and Lamarck? Justify your answer. pressure of the external medium being low can cause a respiratory problem in the case of human beings? Why?
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Trenutno, mi također znamo da je gustoća zraka mijenja s vremenom, odnosno, zrak je tanji na vrhu planine nego na svojoj bazi. Tako su penjači prenose kisik kad penjanje je velika, tj. kada je planina strma, kao u slučaju Paraná Waldemar Nicleivicz u svojoj penjanje Everesta i K2. Fizika Gustoća je omjer mase objekta volumena. Dakle, s obzirom na dva predmeta istog volumena, veća masa će imati gustoću- nost veća. AKTIVNOST Nakon čitanja teksta, odgovoriti na pitanja: Tekst 1: U regijama Afrike, Azije i Južne Amerike, mnogi ljudi stalno žive u vrlo visokim mjestima, a neki žive u planinama Anda do 5000 m nadmorske visine. Ljudi obično ne bi udobno živjeti u tim uvjetima, ali oni su rođeni i žive tamo pate promjene u tijelu koje će im omogućiti da ostanu zdravi. Prsa raste više, čime se povećava kapacitet pluća, a osim toga, krv sadrži više crvenih krvnih stanica od normalnog kapaciteta krvi drugih ljudi i time nose više kisika. Tekst 2: Pluća od ljudi djeluju kao da su jedan mijeh ili harmoniku, dijafragma igra ruku koja pritišće i tisak ovaj mijeh. Po inspiraciju, pluća povećanje u veličini i smanjuje pritisak u njima. Tijela uvijek kreću u smjeru nižeg tlaka, tako da zrak ulazi u pluća. Događa se suprotno vrijeme isteka, dijafragma pritiskom na pluća uzrokuje ih ugovora, smanjujući njihovu veličinu i povećava unutarnji tlak tome. U ovom slučaju, zrak je protjeran, jer je pritisak iz pluća se smanjuje. (Preuzeto iz Ward, 1988) Charles Darwin (1809-1882), u svojoj teoriji evolucije kaže da pojedinci, bića, adaptamse okoliš u kojem žive, te da ove prilagodbe se prenose budućim generacijama. Lamarck(1744-1829), prethodnik Darvim se obratio i evoluciju. Razlika između njih je da se za Lamarck prilagodbe prenijeti na sljedeću generaciju, dok je Darwin govori o prirodnoj selekciji, gdje samo najjači prežive i imaju tendenciju da imaju veći broj potomaka, a to potomci će također imati veći stupanj prilagodbe. U slučaju ljudi koji žive u negostoljubivim područjima kao u tekstu 1, može se koristiti za potvrđuju teoriju Darwin i Lamarck? Opravdati svoj odgovor. Pritisak vanjskog medij bude niska može uzrokovati respiratorni problem u slučaju ljudskih bića? Zašto?