Which of the following was an evolutionary advancement that allowed reptiles to exploit life on land fully?

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    scaly, waterproof skin
    shelled, waterproof eggs
    improved lungs
    internal fertilization
    all of the above

asked May 30, 2013 in Biology by anonymous

1 Answer

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all of the above
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)

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