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| An appendage attached to the head that contains sence organs. |
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| The process of shedding an outgrown skeleton |
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| A process in which an animal's body undergoes dramatic changes in form during its life cycle. |
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| Invertebrates that have an external exoskeleton, a segmented body and jointed appendages |
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| Waxy outer skeleton that protects tha animal and helps prevent evaporation of water |
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| An invertebrate with a soft, unsegmented body; most are protected by a hard outer shell |
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| When blood is not inside blood vessels |
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| A thin layer of tissue that covers a mollusks internal organs and produces the shell(if the mollusk has one).8. A thin layer of tissue that covers a mollusks internal organs and produces the shell(if the mollusk has one) |
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Definition
| A flexible ribbon of tiny teeth used to obtain food |
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Definition
| Organs that remove oxygen from the water |
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