BIO120H1 Lecture Notes - Lecture 1: Eichhornia Crassipes, Reproductive Isolation, Microevolution
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BIO120H1 Full Course Notes
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Large- requires multiple experiments and lines of evidence. How- proximate questions involve determining the physiological or genetic mechanisms responsible for aspects of trait. Why- ultimate questions involve determining the ecological function and adaptive significance of a trait. What were the traits of the primitive species of this organism: experiment: requires experimental design, statistical analysis, hypothesis, controls etc, collaboration between mathematicians and biologists is crucial. Those changes were gradual and not instantaneous. Branching out of a species is well accepted. Genes have common ancestors and are traceable through fossils etc. Most evolutionary change happens through natural selection. Biodiversity: variety of organisms on earth and their numbers of different species within an area. The unifying concept of biology- structure and function of organisms tie to this idea. Affects many other areas of knowledge (politically, historically, religion) The study of evolution is often broken down into two studies: microevolution- evolutionary mechanisms, very process-based. How are they inter related: sources are different-geologists, pattern-based.
