| A | B |
|---|
| structural adaptations | an adaptation of an organism's body parts or coloring |
| mimicry | an adaptation in which one species resembles another |
| behavioral adaptation | an inherited behavior that helps an organism survive |
| fossil | any remains or trace of an organism that was once alive |
| mold | a fossil that is a hollow place shaped like an organism |
| cast | fossil formed by sediments filling up a mold |
| petrified fossil | a fossil formed when minerals slowly replaces some or all of an organism, turning it to stone |
| mutation | changes in gene that may produce new traits |
