EESC 1146 : GE146 Section III Full Notes

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Natural selection a process revealed in the pattern of relationships between and among species. Natural selection: revealed process pattern of relationships of species phylogeny. Hybridization two different species that come together and create viable offspring. Symbiosis joint geno in a third type of organism. The variation within the individual bestows the ability to survive, remain neutral, or die. Homology you can see the relationship of characters between different organisms/species. Biological species: groups of populations of organisms potentially capable of interbreeding nature which are distinct from other such groups. Paleontological species: groups of organisms with similar morphology with their own evolutionary role and tendencies. Morphological species: groups of organisms that look alike. Typological species: groups of organisms that look similar to a selected individual, the type. Provides a physical example of the grouping. i. e. humans-obama) Before darwin"s time 2 competing notions of species. Fixity of the species god creating species as being fixed or permanent (immutable).