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why do we and animals have 2 nostrils?
If be the CELL you mean a cell, then it didn't have nostrils at all. If it required Oxygen, it would be by diffusion through some sort of cell membrane.my friend told me an interesting point of evolution: that we all evolved from one creature, the CELL. he also told me that the reason we have 2 nostrils is because the CELL had 2 nostrils. lol
sound reasonable enough to me
multipass: What makes you think you have the final say on anything just because you say the Almighty has said so? Saying it's the way it is because that's what God intended is very closed minded and not in the spirit of open discussion. Sure, I can see the point of religion, but it's not the be all and end all of why we have two nostrils.
jenya and others: This makes sense, and could be the reason for having two nostrils: http://www.word-detective.com/howcome/nostrils.html
It sounds valid.