BIOL 1201 Lecture Notes - Chloroplast, Opiate, Evaporation
Document Summary
1. 8 million species identified and named: many, many diff, but many unifiers. Evolution: a change in the genetic makeup of a population over time as a result of. Survive, pass on higher limbed gene trees begin to be taller. Natural differences are only useful if they"re inheritable: genotype: actual gene, phenotype: physical characteristic expressed by gene, most important for survival, ex: gazelles have genes specific for speed because they are hunted by cheetahs. But if the gazelle breaks their leg (physical) their genetic difference for speed doesn"t matter: genes need to be expressed, life contains *order* Structural levels with each level building on the levels beneath it. Neutrons, electrons-, lots of others: each level of bio org has *emergent properties* All levels of bio org are thermodynamically open systems : exchanging energy (heat & work) and matter with their environment, sun is the central source of energy.
