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Evolution 1
Intro and Evidence
| Term | Definition |
|---|---|
| Developed the theory of evolution by natural selection | Charles Darwin |
| The theory that organisms change over time | Evolution |
| Darwin's published findings | The Origin of Species |
| the belief that there were processes that shaped the earth in that past that are still working in the present | uniformitarianism |
| The idea that you gain traits if you use them and lose traits if you don't (which is incorrect) | Lamark's Theory of Acquired Characteristics |
| The ship Darwin travelled on | HMS Beagle |
| Where Darwin travelled to | Galapagos Islands |
| Animals Darwin Studied | Marine Iguana, Blue-footed booby, Finches, and the giant tortoise |
| What Darwin concluded about finches | They all came from one common ancestor |
| The 5 key points of natural selection | Variation, competition, survival, reproduction, and selective pressures |
| when organisms exist in all shapes and sizes | variation |
| when organisms have to compete for resources like food | competition |
| organisms who have more abilities to get resources have a better chance of thriving | survival |
| organisms that mate and pass on their genes | reproduction |
| these increase or decrease reproductive success in a species | selective pressures |
| when humans select variations they found useful and breed animals and plants for those traits | Artificial Selection |
| The 6 types of evidence for evolution | fossils, homologous structures, analogous structures, vestigial structures, biochemistry/DNA, embryologic development, and direct observation |
| Show earth's layers and species that lived at each time | fossils |
| are the fossils near the surface older or newer? | newer |
| Parts of the body that are similar but have different functions | homologous structures |
| pattern of evolution in which related species become more dissimilar | Divergent evolution |
| parts of the body that have the same function but different structures | analogous structures |
| the pattern of evolution when 2 unrelated species evolve to have similar features | convergent evolution |
| parts of the body which seem to have no function | vestigial structures |
| looking at embryos to see that species develop in similar ways | embryology |
Created by:
zahnsg
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