BIOLOGY 1B Chapter Notes - Chapter 24: Subsidence, The Principle, Cenozoic
Document Summary
Single cell organisms probably originated in shallow water, lighting triggered the formation of organic molecules ~3. 9 ga. Origin of life coincides with the origin of ecosystem. Cave art in western europe, complex evidence of human interaction. Very detailed drawings of horses, studied horses. Anaximander -- world formed from an early chaos, humans formed from fish. Great chain of being -- life is organized in rungs, where by the lower rungs are occupied by non living things like rocks and water, upper rungs are lower organisms, like lower plants, invertebrates, vertebrates, birds, humans, then angels. Law of superposition -- nicolas steno, tongue stones, giant teeth in shark that looked like tongue stones, tongue stones are actually ancient shark teeth from once-living sharks, recognized that lower layers of sedimentary rock are older than upper layers. Cook and banks sailed around the world, brought naturalists, and plants back.
