BIOL 2299 Chapter : Unit 5.docx

• School: Northeastern University
• Department: Biology
• Course: BIOL 2299
• Professor: Gail Begley

Document Summary

5. 1 introduction to evolution: evolution the change over time in allele frequencies in a population, darwin"s theory was revolutionary because, it overturned the idea that all species are immutable, instead of regarding species as static types, it emphasized the importance of variations among organisms within the same species and population, unlike special creation, it allowed scientists to make testable predictions to evaluate through observation and experimentation, a key feature to any scientific idea. [type text: descent with modification how species change over time, based on favoritism expressed by the environment, towards traits expressed in individuals, driven by natural selection, gaps are commonly attributed to the extinction of intermediary species, links between any two extant species, darwin"s ideas were accepted largely due to the fact that he presented them with readily available examples, as so many people can easily see differentiation within a population.