BIO120H1 Lecture Notes - Lecture 12: Macroevolution, Flowering Plant, Lists Of Invasive Species
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BIO120H1 Full Course Notes
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Evolution occurs in the population level, not the species level. Individuals do not evolve, because your genotype comes from your parents. Small: answering small tractable questions can help contribute towards solving a. Types of question how vs. why questions. How questions: (=proximate questions) involve determining the physiological or genetic mechanisms responsible for aspects of a trait. Why questions: (=ultimate questions) involve determining the ecological function and adaptive significance of a trait. There are a variety of approaches used to address questions; best studies use more than one source of evidence. Theoretical: develop models verbal (describe what you observe), graphical (shape of curve) , mathematical (equation) Comparative: obtain same data from many species(take a bunch of different species and are they all behaving in the way as that one species) Experimental: manipulate a system to address a specific hypothesis; requires an experimental design and statistical analysis. (understand mechanism) Important assumptions about evolution verified by scientific study.
