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| crab |
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| spider |
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| insect |
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| centipede |
- Arthropods is a very big group of invertebrates.
- Arthropods has an outer skeleton.
- Some of them can life in water and some of them can life on land.
- A arthropod must molt or shed its exoskeleton.
- Arthropod are more complex then mollusks.
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