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MBjj History of life
biology
| Term | Definition |
|---|---|
| Fossil | Any preserved evidence of an organism |
| Trace Fossil | Foot prints and burrows |
| Mold and Casts Fossil | Impressions and what fills it in |
| Replacement Fossil | Where original material replaced with minerals |
| Petrified Fossil | Filled with minerals |
| Amber Fossil | Preserved tree sap and hardened |
| Mummified Fossils | Frozen as in the original organism |
| Fossil Formation | Formed form sedimentary rocks that build up until they cover and organisms remains |
| Minerals | Replace the organic mater or fill the empty pore space of the organism |
| Relative Dating | Method used to determine the age of rocks by comparing them with those in other layers |
| Radiometric Dating | Decay of radio active isotopes to measure the age of rock |
| Radioactive Isotopes | Found in ingenious or metamorphic rocks (c14->c12 |
| Eons | Divided into eras which are divided into periods |
| Autotrophic prokaryotes | Enriched the atmosphere with oxygen |
| Cambrian Explosion | Major animal groups that diversified |
| Mass Extinction | Ended Paleozoic era at the end of the Permian period |
| Mesozoic Era | Triassic period with dinosaurs |
| Plate Tectonic | Movement of several large plates that make up the surface of the earth |
| Cenozoic Era | Mammals became dominant, then diversified |
| Spontaneous Generation | Life arises at a rapid rate |
| Francesco Redi | Italian scientist who tested flies across from rotting meat |
| Theory of Biogenesis | Only living organisms can produce other living organisms |
| Louis Pasteur | Designed an experiment to show that biogenesis was true even for microorganisms |
| Modern Idea Theory | Organic molecules could have been synthesized from simple reaction |
| Modern Idea Theory 2 | UV light from the sun and electric discharge have been the primary exchange |
| Stanly Miller and Harold Urey | Showed organic molecules could be made from inorganic compounds |
| Protein Theory | Mechanism for the formation of proteins would be if amino acids were bound to a clay particle |
| Genetic Code | RNA sequences appear to have changed because of RNA's coding system |
| Clay Crystals | Provided initial template for RNA replication |
| Cellular Evolution | First cells were prokaryotes |
| Prokaryote | Aka ( archaea ) and are closest in relation with earth's first cell that has no nuclear membrane |
| Archaea | Autotrophic cells that don't take energy from the sun, don't need oxygen, and evolved form archea |
| CyanoBacteria | Type of prokaryote found in rocks |
| Endosymbiont Theory | Eukaryotes cells that made up the prokaryote cells explains the origin of chloroplasts and mitochondria |
| Prokaryotes Symbionts | organelles in organism (eukaryote cells |
| Darwin on the HMS Beagle | A naturalist on campaign and collected geological specimens hypothesis that new species would appear gradually, inferred that humans could change by artificial selection |
| Natural Selection | organisms with more offspring can survive on available resources, and their variations increase reproductive success |
| Natural Selection 2 | organisms have a trait that allows them to survive better |
| Origin of species | published in 1859 |
| Evolution | provides a record of species shows that ancient species share similaities with organisms today |
Created by:
smiles#1358
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