| A | B |
|---|
| gills | openings that allow a fish to breathe |
| camouflage | a disguise used to hide |
| fin | movable part on a fish that helps it swim and balance itself |
| ecosystem | a community of animals and plants together with its environment |
| cold-blooded | having a body temperature that varies with the surrounding air, water, etc. |
| aquatic | growing, living, or taking place in water |
| vertebrate | having a backbone |
| migrate | to travel from one place to another for feeding or breeding |
| scales | any of the hard, flat, thorny plates covering many fish, reptiles, etc. |
| dorsal fin | a large single fin located along the backbone of a fish |
| predator | preying on other animals |
| life cycle | All the stages of life of living things |
