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sci.4-25-08
Science quiz on 4-25-2008
| word | meaning |
|---|---|
| Mollusk | An invertebrate with a soft, unsegmented body; most are protected by hard outer shells |
| Kidney | An organ that removes the wastes produced by the animal’s cell |
| Gill | An organism breathing organ that removes oxygen from the water |
| Radula | A flexible ribbon of teeth in mollusks |
| Gastropods | A mollusks with a single shell or no shell |
| Bivalve | A mollusk has two shells held together by hinges and strong muscles |
| Cephalopod | A mollusk with feet adapted to form tentacles around its mouth |
| Arthropod | An invertebrate that has an external skeleton; a segmented body, and a joined attachment called appendages |
| Exoskeleton | A waxy, waterproof outer shell |
| Chitin | The tough, flexible materials from which arthropods exoskeleton are made |
| Molting | The process of shedding an outgrown exoskeleton |
| Antenna | An appendage on the head of an animal that contains sense organs |
| Crustacean | An arthropod that has two or three body sections, five or more pairs of legs, two pairs of antennae and usually three pairs of appendages for chewing |
| Arachnid | An arthropod with two body sections |
| Abdomen | A hind section of an arachnid’s body that contains the reproductive organs and part of it’s digestive tract; the hind section of an insects body |
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gpc1313