BIO120H1 Lecture Notes - Lecture 1: Theodosius Dobzhansky, Founder Effect, Macroevolution
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BIO120H1 Full Course Notes
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Document Summary
Experiment- manipulate system to address a specific hypothesis. Biodiversity- variety of life on earth (# of different species in an area) Adaptation- 2 meanings: state- any trait that contributes to the fitness by making an organism better able to survive or reproduce (noun, process- evolutionary process that leads to the origin & maintenance of such traits (verb) Theory of evolution: central unifying concept of biology, affects many areas of knowledge. Micro: evolutionary mechanisms: mechanisms responsibility for evolutionary change. Determining the ecological and genetic mechanisms responsible for evolutionary change. Involve population-level studies of natural selection, adaptation and speciation using diverse organisms. Testing of theoretical models by experiments in the lab and field. Macro: evolutionary history: evolutionary relationships of organisms and their ancestors. Taxonomy & systematics, paleontology, etc. (many fields of sources) Determining evolutionary relationships of organism in terms of common ancestry phylogenetics. Affinities of organisms provide a basis for classification taxonomy and systematics.
