BIO SCI 1A Lecture Notes - Lecture 7: Arnold Schwarzenegger, Special Creation, Comparative Anatomy
24 Feb 2018
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Document Summary
Work of geologists examining fossil record: and then along comes charles darwin and the theory of evolution by natural. Jean baptiste de lamarck (1744 - 1829: first to propose mechanism of evolution, changes occurs as offspring inherit structures that have changed as a result of. Continued use during its life: meaning that the potentials are inherited, but does not show unless lots of practice. Fossils - what are they: hard shells, bones, and teeth that have been preserved in sedimentary rock, generally found in anaerobic (without oxygen) environments, most organisms die elsewhere, most not actual remnants. Other fossils: species preserved in amber, species preserved in ice, tracks, eggs, dung, fossil record very incomplete, but some lineages well represented: horses. What the fossil record reveals: great regularity, particular types in rocks of specific ages, new organisms in younger rocks, relative age only until radiocarbon dating, extinction the fate of all species.
