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which of the following characterstics are present at some point during the embronic devlopment of all?

vertebrates.
1-gills.
2-jaws.
3-fins
4-notochords.
thanks in advance.

2007-04-24 13:16:17 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Biology

1 answers

I think it is 4

2007-04-25 02:30:50 · answer #1 · answered by gerafalop 7 · 0⤊ 0⤋

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