nastanek zemlje Flashcards

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1
Q

kdaj je nastala zemlja

A

pred 4,5 miljarde leti

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2
Q

kdaj so se pojavili prvi organizmi + kateri + česa ni bilo + kje

A

pred 3,2 miljarde leti, v morju, enocelični prokarionti, kisika, v vodi

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3
Q

kako je prišla na zemljo voda

A

ledeni meteorit, para v oblak, dol na zemljo, nazaj v oblak…

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4
Q

od najmanjšega do največjega

A

atom, molekule, spojine, celice, tkivo, organi, organski sistemi, organizem, populacije, življenjske družbe, ekosistem (biotski - živa narava), bisofera (abiotski - ne živa narava)

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5
Q

populacija

A

število točno določene vrste na točno določenem mestu

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6
Q

ekosistem

A

življenjska družba in življenjski prostor skupaj

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7
Q

življenjska družba

A

vsa živa bitja

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8
Q

biosfera

A

vsota vseh ekosistemov

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