click below
click below
Normal Size Small Size show me how
theory of evolution
| Question | Answer |
|---|---|
| homosapiens | person |
| neanderthal | caveman |
| fossils | physical clues of the past that help determine what happened long ago |
| trace | fossil that is a marking left by an animal. example is a footprint |
| cast | minerals and rocks fill a space left by a decayed organism, they make a replica of the organism |
| petrified | minerals replace wood making a copy of them |
| imprint | thin object falls into sediment can leave an imprint when sediment hardens. example is a leaf |
| molds | organism is buried in sediment and then decays , leaving an empty space. leaving a negative image of organism |
| relative dating | assuming the oldest layers of rock are at the bottom and the youngest layers are towards the top |
| precambrian | 3 by the period of time "life supposedly appeared from non-living material |
| paleozoic era | 542 mya is the era in which amphibians and reptiles "evolved" |
| cenozoic era | 65 mya was the "supposed" beginning of placental mammals and man |
| prokaryotes | first types of cells evolutionists claim to evolve that lack true nucleus |
| eukaryotes | cells supposedly evolved by endosymbiosis |
| cambrian explosion | fossils of a variety of phyla all fully formed in the bottom layer of the geologic column which causes problems for evolutionists |
| reproductive isolation | populations being isolated due to for example mating calls are different |
| speciation | members of similar populations no longer interbreed to produce fertile offspring within their natural habitat |
| disruptive selection | favors either extreme variation |
| directional selection | favors one extreme variation of a trait |
| stablizing selection | favors average variation individuals |
| population | # of organisms in a specific area |
| camouflage | ability to blend |
| evolve | to go from 1 organism to another |
| natrual selection | mechanism for change in a population |