| A | B |
| mammals | A trait of this animal is a body covering called fur. |
| traits | The features of a young animal gets from its parents are |
| inherited | How traits are gotten from parents |
| amphibians | Animals that begin life in water and later live on land |
| migrate | Animals that move to the south to escape cold winters |
| birds | This animal's body is covered with feathers |
| scales | Reptiles and fish have |
| mimicry | When one animal looks like another it is called |
| fish | Scales make it easy for this animal to glide through the water. |
| gills | Young amphibians and fish use these to take in oxygen. |
| instinct | Behaviors animals know without being taught are called |
| reptiles | These animals have dry, scaly skin. |
| fossil | Evidence that an animal lived long ago is a |
| camouflage | An animal that has a color similar to its environment has |
| extinct | When all of one kind of organism dies, the organism is |
| threatened | If the numbers of an organism are going down, the organism is |
| hibernate | Animals that sleep through the winter |
| species | A specific scientific name identifies a ______ of an organism |
| endangered | A species that may become extinct is |
| air food water shelter | To live all animals need |
| lodge | The shelter that beavers build is a |
| mammal | An animal that feeds its young milk from its body is a |
| cells | All animals are made of |
| lay eggs have scales | Two traits of reptiles are |
| moist skin lay eggs | Two traits of amphibians are |
| two legs and wings feathers lungs lay eggs | Five traits of birds are |