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vocab...
| Term | Definition |
|---|---|
| Divergent Evolution | species that were once a common ancestor diverge, or become increasingly different. |
| Cladogram | Shows particular characters that are either present, or not present, in the organisms being compared. |
| Geographic Isolation | A new species evolves because a physical barrier separated the population . over time, the divided populations may no longer interbreed, even if reunited. |
| Adaptive Radiation | when an ancestral species evolves into an array of species to fit a number of diverse habitats. is more common on the islands. |
| Homologous Structures | Structural features with a common evolutionary origin |
| Vestigial Structure | A body structure in a present-day organism that no longer serves its original purpose, but was probably useful to an ancestor. |
| Camouflage | Adaption to help an organism blend with its surroundings. |
| Analogous Structure | The body parts of organisms that do not have a common evolutionary origin but are similar in function |
| Convergent Evolution | Unrelated species occupy similar environments and evolve similar traits. |
| Mimicry | One species physically resembles another |
| Adaption | A structure, behavior, or internal process that enables an organism to respond to environmental factors and live to produce off springs. |
| Reproductive Isolation | Formerly interbreeding organisms can no longer mate and produce offsprings. |
| Punctuated Equilibrium | hypothesis that speciation occurs relatively quickly, in rapid bursts, with long periods or genetic equilibrium in between. |
| Gene pool | all the allels of a populations genes Example.. Bb |
| Mutation | any change or random error in the dna sequence |
| Artificial Selection | involves people taking charge of selection to produce new, better varieties or various species. manipulate breeding to produce more desirable offspring |
| Natural Selection | any advantage that allows an organism yo get more food, survive and reproduce . the organisms best suited to survive in their environment have a greater chance or passing their traits on the next generation |
| Evolution | The gradual change in a species over time. CANNOT happen to an individual organism |
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Lovin'g
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