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Exploring Fishes and Amphibians in Vertebrates: Part I

Dive into the fascinating world of fishes and amphibians in Vertebrates: Part I. Learn about the diverse classes of fishes, their unique structures, and the challenges faced by amphibians in transitioning to land. Discover the intriguing frog life cycle and more in this educational exploration.

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Exploring Fishes and Amphibians in Vertebrates: Part I

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  1. Vertebrates: Part I Fishes & Amphibians

  2. Fishes • Live in freshwater or saltwater • Bone or cartilage protects brain & spinal cord • Gills for respiration • Mostly external fertilization

  3. Classes of Fishes • Agnatha (Jawless Fish) • Lampreys • Chondrichthyes (Cartilaginous Fish) • Sharks, rays • Osteichthyes (Bony Fish) • Most common fish

  4. Fish Structure

  5. Amphibians (Amphi- double) • Ectothermic • Most have metamorphosis • 2 Big Groups • Anura: frogs, salamanders • Caudata: salamanders, newts

  6. Problems with life on land • Drying out • Respiration • Reproduction • Movement • Temperature Control

  7. Frog Life Cycle

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