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Grade 7 Ch B2 Vocab
Science Explorer Animals Ch 2 Vocabulary
| Term | Definition |
|---|---|
| Mollusk | An invertebrate with a soft, unsegmented body, most are protected by a hard outer shell |
| gastropod | A mollusk with a single shell or no shell |
| herbivore | an animal that eats only plants |
| carnivore | An animal that eats only other animals |
| bivalve | A mollusk that has two shells held together by hinges and strong muscles |
| omnivore | An animal that eats both plants and animals |
| cephalopod | An ocean |
| arthropod | An invertebrate that has an external skeleton, a segmented body, and jointed appendages |
| crustacean | An arthropod that has two or three body sections, 5 or more pairs of legs, and 2 pairs of antennae |
| metamorphosis | The process in which an animal’s body undergoes dramatic changes in form during its life cycle |
| arachnid | An arthropod with two body sections, four pairs of legs, and no antennae |
| insect | An arthropod with three body sections, six legs, one pairs of antennae, and usually two pairs of wings |
| producer | An organism that can make its own food |
| consumer | An organism that obtains energy by feeding on other organisms |
| decomposer | An organism that breaks down the wastes of dead organisms |
| echinoderm | A radially symmetrical invertebrate that lives on the ocean floor and has an internal skeleton |
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DawnSimpson
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