GEOL 107 Study Guide - Final Guide: Great Oxygenation Event, Ediacaran Biota, Cambrian Explosion

• School: Queen's University
• Department: Geological Sciences and Geological Engineering
• Course: GEOL 107
• Professor: Guy M Narbonne

Document Summary

5: classification of life: biological classification reflects evolutionary relationships (phylogeny). 6: fossils, the medals of evolution : most visible fossils represent the preserved hard parts (bones, shells, cellulose) of ancient animals and plants. Trace fossils provide information about fossil behaviour that would be difficult to deduce from shells and bones alone: fossil assemblages with soft tissues preservation (fossil. Lagerst tten) provide unique and important glimpse into fossil life. 7: in the beginning origins of the earth and life of ! 7: conditions on the early earth were nearly ideal for the formation of life. Life evolved sometimes during the first billion years, possibly in or near hydrothermal vents: steps 1 (simple organic molecules) and 3 (initiation of replication) are innate to the earth and life in general. We have some promising leads, but it is presently uncertain how complex organic molecules originally formed.