lecture 6 animal evolution the vertebrates n.
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Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES. Fishes are related to tetrapods. Lungfishes are like Tetrapods: Has a separate blood circuit to the lungs. Skull bones are arranged in the same way as the fishes and so is the tooth enamel.

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fishes are related to tetrapods
Fishes are related to tetrapods
  • Lungfishes are like Tetrapods:
    • Has a separate blood circuit to the lungs.
    • Skull bones are arranged in the same way as the fishes and so is the tooth enamel.
    • Their limbs are almost the same size as the fins of the lobe-finned fishes and lungfishes.
  • Limb joints, digits and other traits of fossils – walking originated in water and not on land.