briefly compare and contrast two Cretaceous vertebrates (mammals or dinosaurs) with a mammal that arises during...

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Biology

briefly compare and contrast two Cretaceous vertebrates (mammals ordinosaurs) with a mammal that arises during the Paleogene. Considerin your discussion how mammals broadly filled the ecological nichesleft open by the extinction of the dinosaurs.
Compare:
Aucasaurus and Iguanadon(Cretaceous) toAndrewsarchus(Paleogene)

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ANS Mammals are animals evolved from synapsid reptilesthey feed their young milk and have a unique arrangement of teeth and ear bonesmost are covered with fur or atleat have fur on some par of their bodies except for    See Answer
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