| A | B |
|---|
| Vertebrates | Animals with a backbone |
| Muscular System | Its job is to move a body's bones |
| Cold-Blooded | Animals, such as snakes, that warm their bodies in the sun. |
| Sponge | The simplest kind of invertebrate, and its body doesn't have symmetry |
| Invertebrates | Animals without a backbone |
| Birds | Animals that have hollow bones |
| Life Span | How long an organism is expected to live |
| Endoskeleton | An inter supporting structure |
| Nervous systen | Made up of the brain, spinal cord, nerves, and sense organs |
| Life Cycle | An organism's birth, growth, reproduction and death |
| Amphibian | An example of a vertebrate |
| development and hatching of eggs | How a penguin reproduces |
| Respiratory system | Helps put oxygen in blood cells and remove wasted gas |
| Sea Star | Reproduces through regeneration |
| Budding | A process in which an animal reproduces by growing offspring on its body that later break off |
