1. why did vertebrates move onto land?ns328vertebratenh.weebly.com/uploads/8/8/1/7/... · 1. why...
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1. Why did vertebrates move onto land?
2. What are the challenges of terrestrial life?
3. How did early tetrapods “solve” these problems?
4. Why were/are early tetrapods and modern amphibians
limited to moist environments?
5. What adaptations enabled the reptiles to colonize new
(dry) environments?
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Carboniferous Period
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Permian Period
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Jurassic Period
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Stapes/tympanum (early tetrapods)
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Note: 3 and 4 are reversed!
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Amniota
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Monophyletic Paraphyletic, Polyphyletic
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Bufonidae Hylidae Ranidae
Anura Many more families!
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http://animaldiversity.org/site/topics/frogCalls.html