BIOLOGY 1114 Lecture Notes - Lecture 5: Rock–Paper–Scissors, Heredity, Speciation

• School: Ohio State University
• Department: Biology
• Course: BIOLOGY 1114
• Professor: All

Document Summary

Results from the pre-test: we suck at identifying the validity of sources, qkey will let us know if we can see our answers to the test. Adaptive radiation: organisms are able to speciate fairly quickly through adaptive means (natural selection, most likely what happened to the finches. Darwin"s four postulates of natural selection: (btw, this is hella important . Memorize!: variation within a species, inheritance: variation can be passed on to offspring, different survival: more offspring are produced than can survive, extinction: survival is not random individuals who survive are those with most favorable variation. Darwin proposes more than natural selection: common descent, gradual changes over a lot of time. All living things are part of a community. Difference among organisms have accumulated in small increments over a long time. Out of his uniformitarianism perspective: population differentiation. Changes in species reflect changes in the proportion of individuals in a population being certain hereditary traits.