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Chapter 14 :)
Vocabulary!!
| Question | Answer |
|---|---|
| is any preserved evidence of an organism. | fossil |
| is a scientist who studies fossils. | paleontologist |
| is a method used to determine the age of rocks by comparing them with those in other layers. | relative dating |
| states that younger layers of rock are deposited on top of other layers. | law of superposition |
| uses the decay of radioactive isotopes to measure the age of rock. | radiometric dating |
| is the amount of time it takes for half of the original isotope is to decay. | half-life |
| is a model that expresses the major geological and biological events in Earth's history. | geologic time scale |
| is the next largest division of the geologic time scale. | era |
| each era is divided into one or more... | periods |
| is the ancestors of most major animal groups diversified. | cambrian explosion |
| is the primary evidence between the rocks of the paleogene period, the first period of the Cenozoic era. | K-T boundary |
| describes the movement of several large plates that make up the surface of Earth. | plate tectonics |
| is the idea that life arises from nonlife. | spontaneous generation |
| states that only living organisms can produce other living organisms. | theory of bio genesis |
| is the ancestors of eukaryotic cells lived in association with prokaryotic cells. | endosymbiont theory |
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elegaspi203
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