Tema: Riba i živa
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Old 20.12.2011., 21:48   #12
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Ne razumijem ovo s jajetom.
1. Misli se na jaje divlje ptice koja se prehranjuje organizmima koji borave u zagađenim morima/vodama/jezerima?
2. Prema toj količini žive u organizmima, tj. u jajima ovih ptica sve one bi trebale biti potpuno nesposobne za život?
Živa utječe na živčani sustav.
3. Postoje li neka istraživanja o tome (ptice i njihovi mladi)?
4. Ako sam dobro izračunala kila takvih jaja bi sadržavala 0.0048 g žive.
5. Koja koncentracija žive u tijelu uzrokuje oštećenja?
1. Da
2. Ne znam
3. Naprimjer
http://news.nationalgeographic.com/n...rcury-science/
4. Dobro si izračunala
5. Ne znam

Ako pomaže, slika je odavde:
http://sofia.usgs.gov/sfrsf/rooms/me...eel/cause.html
__________________
"A human being is part of a whole, called by us the 'Universe,' a part limited in time and space. He experiences himself, his thoughts and feelings, as something separated from the rest--a kind of optical delusion of his consciousness. This delusion is a kind of prison for us, restricting us to our personal desires and to affection for a few persons nearest us. Our task must be to free ourselves from this prison by widening our circles of compassion to embrace all living creatures and the whole of nature in its beauty." - Albert Einstein
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