BIOL 1201 : Exam 1 Notes

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15 Mar 2019
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About 1. 8 million species have been classified and named. With so many different species, there are many different unifying similarities: evolution is a central theme in biology. The ability to evolve is built into organisms. Evolution is a change in the genetic makeup of a population over time as a result of natural selection. Variability means some are better suited to survival. Variability come from the genes and genes are inherited. More good genes survive and therefore the population changes: life contains an order of structural levels with each level building on the levels beneath it, hierarchy of biological organization. A property that emerges as a result of interactions between components as complexity increases: ex. If you mix all the components of a chloroplast together in a tube, photosynthesis will not occur: molecules must interact in a specific way. With each step up in biological hierarchy new emergent properties are seen: ex.

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