BIOLOGY 207 Study Guide - Midterm Guide: Green Sulfur Bacteria, Fermented Milk Products, Cupriavidus Necator
Document Summary
Aleksandr oparin and andrei kursanov studied origin of life on a chemical level. Evolution: a theme that unifies all of biology. We consider: the possible conditions under which life arose (early earth); the processes that might have given rise to the first cellular life; its divergence into two evolutionary lineages, Jerry coyne: evolutionary geneticist wrote why evolution is true; an overwhelming case for evolution; with great care, attention to the scientific evidence; ranging from biogeography to geology, anatomy to genetics, and molecular biology to physiology. Origin of universe, circa 12. 5 billion years ago. Earth, about 4. 54 billion years ago, based on data from slowly decaying radioactive isotopes. From accretion of materials making up a disc-shaped nebular cloud of dust and gases released by the supernova of a massive old star. A new star, our sun, formed within this cloud, compacting in on itself and beginning to undergo nuclear fusion and to release heat and light.
