Utilizeaza corect notiunile:hrana, aparat digestiv, digestie, nutrimente, absorbtie, singe, celulele corpulu, sistem respirator, oxigen, energie, dioxid de carbon, apa. un text

ajutor
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ma scuzati trebue textul sa descrii procesul asimilatiei si dezasimilatie la animale
pai n-ai zis
am uitat sa scriu
amu am vazut
cine poate sa ma ajute

Răspunsuri

2014-05-16T18:33:02+03:00
Hrana este digerata prin intermediul aparatului digestiv. Procesul prin care are lor transformarea hranei in substante necesare organismului, si anume in nutrimente,  se numeste digestie. Nutrimentele intra in circuitul sangvin prin absorbia lor de catre intestinul subtire.Celulele corpului au nevoie de aceste nutrimente. Totodata asigura corpului si energia necesara. Sistemul respirator asigura corpului oxigenul necesar vietii.
Prin respiratie se elimina dioxid de carbon. In afara de hrana si oxigen corpul uman are nevoie si de apa.