BIOL 1F90 Midterm: Bio Midterm Review
10 Feb 2016
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Know geological timescale and major environmental changes that have. Explain various biases that affect our interpretation of the fossil record. Review the basic differences between prokaryotes and eukaryotes. Know theories behind evolution of eukaryotic cells. Place the appearance of prokaryotic and eukaryotic organisms within the four eons of geologic time. List typical environmental changes that influence the emergence and or/ disappearance of species (climate/temperature; atmosphere; land masses; Explain causes and effects of the mass extinctions (497-500) Ordovician glaciers formed, water levels dropped; 60% of marine life extinct. Trace evolution of single celled and multicellular eukaryotes through the geological time scale. 493-497 prokaryotes in archean eon, simple eukaryotes early proterozoic. Eon, multicellular eukaryotes middle of proterozoic eon (1. 5 bya) Characterize major periods of the paleozoic, mesozoic and cenozoic eras. Define biological evolution: a heritable change in one or more characteristics of a population or species across many generations.
