1.evolution of lungs from gills
2.development of tetrapod limbs for support
3.development of shelled eggs
4.change in integument/skin to prevent desiccation/drying out
2007-02-03 13:51:48
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answer #1
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answered by Anonymous
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Answer choice D. On land, amphibians could get back into the water if they dry up USING LEGS. Their moist skin allows to help them stay on land for longer periods of time. Why have moist skin? Because that's a way for amphibians to get water into their bodies. Lungs help them breathe on land.
2016-03-29 03:49:28
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answer #2
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answered by Mary 4
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If Evolution were responsible for the variety of life on this planet.....
Smaller body mass... huge masses like the blue and sperm whales would be litterally crushed to death by their own mass. Us smaller life forms simply suffer from aching feet at the end of the day...
2007-02-03 14:00:15
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answer #3
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answered by Yoda's Duck 6
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Might I sugest you read Genesis in the Bible with an open mind.
the first chapter is very specific (v:24) for your answer. GOD Bless You and may you find comfort while reading.
2007-02-03 13:53:04
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answer #4
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answered by Anonymous
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Oxygen was easier to breathe. so flippers became legs.
2007-02-03 13:52:10
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answer #5
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answered by Anonymous
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breathing in carbon dioxide!
2007-02-03 13:53:13
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answer #6
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answered by Anonymous
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