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Fishes
| Question | Answer |
|---|---|
| fish | vertebrate that lives in water and uses fins to move |
| cartilage | tissue that is more flexible than bone |
| swim bladder | internal, gas-filled sac that helps the fish stay stable at different depths in the water |
| forked | having two branches; divided; split |
| propel | to push forward |
| lure | to attract |
| ectotherm | animal whose body does not produce much internal heat |
| receptor | sensor for feeling things |
| captivity | confined place out of the wild |