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Vertebrate Evolution

Discusses the structures evolved by vertebrates such as a skeleton and endothermy.

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Vertebrate Evolution

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amniotic egg

Egg that can withstand a lack of water environment; has a water-impermeable amniotic membrane surrounding a fluid-filled amniotic cavity; permits embryonic development on land without danger of dessication.


Regulation of body temperature from the outside through behavioral changes, such as basking in the sun.

phylogenetic tree

Diagram that shows how species are related to each other through common ancestors.

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