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Natural Selection 1
Evolution
| Question | Answer |
|---|---|
| evolution | Change over time |
| evolution is a | theory tells how and why with evidence to support |
| Darwin suggested creatures change over time by | natural selection, most fit animal survives |
| variation | a difference in traits that may help or hurt the organism |
| darwin's ________ helped him realize why animals adapt to their surroundings | finches |
| offsrping inherit | sucessful traits |
| speciation | seperating into species |
| evolution is NOT based on __________ | acquired traits (LaMarck) |
| adaption | growing (evolving) to best fit environment |
| darwin published | on the origin of species |
| __________ variation exsists in populations (making us all different) | heritable |
| fossil records | show changes over time |
| anatomical records | compare body structures |
| molecular record | compares protein and DNA |
| artifical selection | human caused evolution, "evolution by human selection" |
| law of superpoSITion | younger fossils SIT on older fossils |
| comparative embryology | similar structures between organisms while developing in the embryo |