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Bio 2010 WB Topic 5
The Living Environment (Topic 5)
| Question | Answer |
|---|---|
| Adaptive value | Any trait that helps an organism survive and reproduce under a given set of environmental conditions. |
| Evolution | The process by which species have changed over time. |
| Extinction | The disappearance of all members of a species from Earth. |
| Fossil record | A collection of fossils used to represent Earth's history. |
| Genetic variation | The normal differences found among offspring. |
| Geologic time | Earth's history as revealed by layers of rock. |
| Mutation | Any alteration in the sequence of DNA. |
| Natural selection | The process by which the organisms that are best adapted to a specific environment survive and produce more offspring than organisms that are not as well adapted. |
| Overproduction | The potential for a species to increase its numbers beyond the area's carrying capacity |
| Theory | An explanation, supported by many observations and/or experiments, that can be used to accurately explain related occurrences. |