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Animals
| Question | Answer |
|---|---|
| Homeostasis | The condition in which an organism's internal environment is kept stable. |
| Adaptation | An inherited behavior or physical characteristic that helps with reproduction and survival. |
| Vertebrate | An animal with a backbone. |
| Invertebrate | An animal without a backbone. |
| Tissue | A group of similar cells that perform a specific function. |
| Organ | A body structure that is composed of different kinds of tissues working together. |
| Radical symmetry | A body plan with many lines of symmetry that all pass through a central point, and mirror each other. |
| Bilateral symmetry | A body plan with one line of symmetry that divides the the left and right side that mirror each other. |
| Cnidarian | A radially symmetrical invertebrate that uses stinging cells to capture food and defend itself. |
| Mollusk | An invertebrate with a soft, unsegmented body and some have shells. |
| Arthropod | An invertebrate that has an external skeleton, segmented body, and jointed appendages. |
| Exoskeleton | A external skeleton a though, waterproof outer covering that protects and supports. |
| Echinoderm | A radially symmetrical marine invertebrate that has an internal skeleton and system of fluid filled tubes. |
| Endoskeleton | A internal skeleton or support system within the body. |
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