BIOL 1108 Midterm: LAB PRACTICAL 1 STUDY GUIDE
Document Summary
Scientific method: observe and state the problem, background research, formulate a hypothesis, test hypothesis, results and conclusions, publicate results. Hypothesis: educated guesses, can be tested, data can support or not support the hypothesis. Impression: no organic matter preserved (ex. trace, footprints: compression: some organic matter preserved, leftover cell structure, petrification: plant tissue replaced with minerals, amber: preservation with fossilized plant sap. Three domains of life: eukarya, bacteria, archaea (prokaryotes) Geologic time scale: earth is 4. 6 billion years old. Time periods based on dating of sedentary rock layers, and assembling organisms. Tectonic plate movement resulted in volcanic eruption and the destruction of fossil record of time period. Broken down in eons, eras, periods, and epochs. Currently, in cenozoic era, quaternary period, holocene epoch. Cladogram/phylogenic tree: depicts evolutionary relationships among different taxa, evolutionary hypothesis. Taxa (taxon, singular): a group of one or more populations of an organism, species, genus, order, etc. Synamorphies: shared derived characteristics present in ancestral species, shared exclusively.
