| A | B |
| Warning coloration is ___ | a way to warn predators away |
| birds use the magnetic field to ____ | navigate |
| Pheromones are ____ | chemicals used for communication |
| the relationship of a worm and robin is ____ | prey and predator |
| A natural sponge is a ___ | invertabrate |
| Animal cells are surrounded by ___ | cell membrane |
| How do animals use camoflage? | changing color, not moving, mimicking a leaf |
| True or False A squirrel hibernates? | True |
| Why do animals use signals? | to attrate a mate; avoid predators, influence other animal behaviors |