'Mineralized skeleton' diaporamas de présentation

Chapter 34

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Chapter 34

1.41k views • 124 slides

Chapter 34

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Chapter 34

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Chapter 34

Chapter 34. Vertebrates. Vertebrates. Get their name from vertebrae, the series of bones that make up the backbone. Vertebrates. There are approximately 52,000 species of vertebrates

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Chapter 34

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Evolution of Vertebrates

Evolution of Vertebrates. The animals called vertebrates get their name from vertebrae, the series of bones that make up the backbone There are about 52,000 species of vertebrates, including the largest organisms ever to live on the Earth

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A hypothetical phylogeny of chordates

Chordates. Craniates. Vertebrates. Gnathostomes. Osteichthyans. Lobe-fins. Tetrapods. Amniotes. Echinodermata (sister group to chordates). Cephalaspidomorphi (lampreys). Chondrichthyes (sharks, rays, chimaeras). Amphibia (frogs, salamanders). Cephalochordata (lancelets).

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