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Preston's Studyguide
yolo
| Question | Answer |
|---|---|
| Natural Selection | The process by which individuals are better adpated to their environment and are more likely to survive and reproduce. |
| Variations | Any differebce between individuals of the same species. |
| Half-Life | The time it takes for half of the atoms in a sample to decay. |
| Scientific Theory | A well tested concept that explains a wide range of observations. |
| Punctuated Equilibrium Theory | The theory that species evolve quickly during short burts of time. |
| Fossil Record | Documentation of the millions of fossils scientists have collected over time. |
| Radioactie Decay | Unstable elements that decay or break down into different elements. |
| Homologous Structures | Similar structures that related species have inherited from common ancestors. |
| Mold | A hollow space left where the fossil had decayed or dissolved. |
| Relative Dating | A process comparing the age of two fossils by their placement in the layers of the sedimentary rock layers. |
| Evolution | Grabual changes in a species over time. |
| Petrified | Fossils that are buied in sediments and actually changed to rock. |
| Adaptation | A trait that helps an organism survive amd reproduce. |
| Gradualism Theory | The theory that evolution occurs slowly but steadily. |
| Branching Tree | A diagram that shows how scientist think different groups of organisms are related. |
| Radioactive Dating | A process that tests the radioactive materials within a fossil to tell its actual age. |
| Fossils | Preserved remains of an organism that lived in the past. |
| Extinction | When no member of the species is still alive. |
| Cast | A copy shape of the organism thats made. |
| Compitition | This is the factor in natural selection as organisms attempt to survive using the same limited resources. |
| Homologous Structures | Evidence tha trelated species had a common ancestor because of the way their bodies are anatomically constructed in similar ways. |
| Overproduction | This is the factor in natural selection happens when there are more offspring that can possibly survive on the given resources. |
| Species | A group of organisms that can mato together and produce fertile offspring |
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Gamexpman
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