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| these animals are invertebrates, with a soft body, which is protected by a hard outer shell, it has a thin tissue called a mantle that covers its organ called a foot |
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| a flexible ribbon of tiny teeth to obtain foos |
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Definition
| invertebrates that have an outside segmented body and jointed appendages, they have bilateral symmetry and an open circulatory system and they reproduce sexually |
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Definition
| a water proof waxy outer covering and protects the animal and helps prevent evaporation of water |
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Definition
| invertebrates with an internal skeleton also known as endoskeleton, with fluid filled tubes called water - vacuolur system, they live in salt water, they are members of the phylum echinodermata, they are made of hardened plates and bumpy texture, their body parts are in multiples of five, sea cucumbers, sea stars and sand dollars are all echinoderms |
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