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The top documents tagged [nervous system simple]
Nervous system Simple to complex Jellyfish to a Human Same: sensory- processing center- motor output-muscle (behavior)
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FACT OF THE DAY: * Messages travel along the nerves as electrical impulses. They travel at speeds up to 248 miles per hour!
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What is an Animal? Characteristics of All Animals 1. Animals are Multicellular 2. Animals are Eukaryotic 3. Animals are Heterotrophs 4. Animal cells lack
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