| Term | Definition |
| survive | To continue to live is to ____________. |
| challenges | Survival is not easy for organisms, because every ecosystem has its _________. |
| adaptations | Organisms have ______________ that help them survive in their environments. |
| behaviors | Traits and ______________ help animals survive. |
| get food | Adaptations can help animals move, ___________, live in certain climates, and protect themselves. |
| protect | Adaptations can help animals move, get food, live in certain climates, and _________ themselves. |
| rainfall | A desert is a place that gets very little ______________. |
| water | Animals that live in the desert have adaptations for saving ___________. |
| heat | The fenec fox has large ears that give off ___________. |
| fur | The fennec fox has thin ____________ that helps it stay cool. |
| fat | Camels have humps that store _______________. |
| hibernating | Some animals avoid cold winters by ______________. |
| energy | While hibernating, some animals live off their body fat and use very little _____________. |
| camouflage | An animal that blends in with its environment uses ______________. |
| predators | By looking like a honeybee, the hover fly avoids _______________. |
| mimicry | A kind of adaptation where something makes itself look like something else (for example, a hover fly looking like a honeybee) is called __________. |
| body structure | For most animals, their __________________ is enough to help them survive. |
| predators | Hedgehogs have hard spines and curl into a ball to avoid ______________. |