Biology 1201A Study Guide - Midterm Guide: Paleontology, Aminoacyl-Trna, Spindle Apparatus
3 Oct 2016
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Gradual change in organisms measured in generations. How organisms have developed over history on earth. Father of palaeontology a: different fossils on different layers must equal extinction, catastrophism: sudden events on each wiped out species, 1797-1875 lyell. Inheritance of acquired characteristics b: perfecting principle: an inner nature or essence drove species to become more complex, measured by their nervous systems and internal organs (regected by. !1: theory of natural selection: populations evolve, not one person, explains origin of biodiversity and new species. Pick a trait and force breed it to acquire the trait in next generation: galapagos islands. Each island had nches with different beaks. He discovered there must have evolved to survive in their individual environment: evolution by natural selection. Many offspring so chances of survival is higher. The ones with good traits survive to pass on the trait, then the trait becomes common in the generation: conclusions: Populations can differ over time, resulting in new species.
