| A | B |
|---|
| Arthropoda | A phylum that all insects, shrimp, spiders, and centipedes are all in. |
| Appendages | Structures that grow from the body. |
| Exoskeleton | An external covering that all arthropods have. |
| Molting | A period in which the arthropod sheds is old exoskeleton and replaced by a new one. |
| Spiracles | Openings in the abdomen that allow oxygen and carbon dioxide to move into and out of the book lungs. |
| Metamorphosis | The change of form during the life cycle : egg, larva, pupa, adult. |
| Chordates | A member of the animal phylum Chordata that has a notochord, a hollow dorsal nerve cord, and gill slits at some time in its life cycle. |
| Notochord | A flexible, rodlike structure along the dorsal side, or back, of an animal. |
| Dorsal Nerve Cord | A bundle of nerves that lies above the cotochord in a chordate animal; the spinal cord in most vertebrates. |
| Gill Slits | Paired openings located in the throat behind the mouth. |
| Endoskeleton | The internal skeleton of an organism that supports and protects the internal organs and provides frame for muscles. |
| Cold-Blooded | The body temperature of an animal chanes with the temperature around it. |
| Warm-Blooded | Animals such as birds and mammals that have a body temperature that stays the same in any enviroment. |
| Fish | Cold-blooded vertebrates that have three adaptations that allow them to live in water. |
| Fins | Fanlike structures used for steering, balancing, and moving. |
| Scales | Hard, thin, overlapping plates that cover and protect a fish's body. |
| Cartilage | A tough, flexible tissue that is not as hard as bone. |
| Predator | An organism that kills and eats other food |
| Prey | The organism that is killed and eaten. |
