Lecture 6 animal evolution the vertebrates
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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES PowerPoint PPT Presentation


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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES. The Chordates… . A division comprising vertebrates. Coelomate, bilateral animals. Most are vertebrates; only a few are invertebrates . Distinct Features of Chordates. A notochord Tubular, dorsal nerve cord

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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES

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Lecture 6 animal evolution the vertebrates

Lecture 6ANIMAL EVOLUTION: THE VERTEBRATES


The chordates

The Chordates…

  • A division comprising vertebrates.

  • Coelomate, bilateral animals.

  • Most are vertebrates; only a few are invertebrates.


Distinct features of chordates

Distinct Features of Chordates

  • A notochord

  • Tubular, dorsal nerve cord

  • Gill slits punctuates the wall of pharynx

  • Post-anal tail


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