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Life Science 17

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Across
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The ___ nervous system includes the brain and spinal cord
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Strong, but more flexible than bone
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Can have 2, 3, or 4 chambers
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Amphibians with tails
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Pits on a rattlesnake detect ____
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Type of fish a tuna is
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Fish use these to get oxygen
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Scavengers in jawless fish group
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Michaelangelo is one of the mutant ninja ____
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Frogs and ___ are tailless amphibians
Down
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Animal with a backbone
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Type of fish a shark is
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Number of chambers in a bird's heart
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Number of chambers in a reptile's heart
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This group of reptiles only has one species
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Type of nerve that attaches to the brain
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These filter wastes from the blood
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The esophagus empties into the ___
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Type of nerve that attaches to the spinal cord
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Reptiles with no legs
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This carries oxygen, food, wastes, and other materials