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Theory of Ev.
Theory of Evolution
| Question | Answer |
|---|---|
| Who had formulated the idea to the fullest extent in his book On the Origin of Species? | Charles Darwin |
| by using recombinant DNA technology, What have we changed? | genetic make-up of populations |
| by using recombinant DNA technology, what have we created? | new organisms, such as bacteria that produce human insulin |
| The survival of an organism depends on its ability to sense and respond to the | external environment |
| What do organisms with similar needs do in all environment? | compete for the same resources |
| a process by which organisms with traits well suited to an environment survive and reproduce at a greater rate than organisms less suited to that environment. | Natural Selection |
| Natural selection can occur in what four ways? | Overproduction, Genetic variation, struggle to survive, Successful reproduction |
| creates stability in ecosystems and biomes | Biodiversity |
| A community that has biodiversity will not be seriously affected by what? | The extinction of one or two species |
| the breeding of organisms that have a certain desired trait | Selective Breeding |
| the manipulation of genes that allows scientists to put genes from one organism into another organism | Genetic engineering |
| Earth's original atmosphere was anaerobic, which means? | It contained no free oxygen |
| What is cyanobacteria? | a type of photosynthetic bacteria |
| The fossil record indicates that Earth’s first inhabitants were? | prokaryotes |
| When did the first eukaryotes appear? | 1.5 billion years ago |
| the main tool used by scientists to study the history of life on Earth | Fossils |
| states that younger rock layers form on top of older rock layers | principle of superposition |
| Method of determining the age of an object or event in years is known as what? | Absolute dating |
| a method in which the age of an object or event is determined relative to some other object or event | Relative dating |
| particularly useful in relative dating due to their precise age | Index Fossils |
| tates that sediment is deposited in horizontal layers. | principle of original horizontality |
| Sedimentary rocks form as _______ rock layers from this sediment | horizontal |
| if an index fossil with an age of 20 million years is found, geologists know that the layers above the index fossil are younger or older than the layers bellow? | Younger |
| Both rock layers and fossils can also be dated using what kind of dating? | Radiometric dating |
Created by:
amandahase
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