BIOL 1020 Lecture Notes - Lecture 17: Evolution, Atomic Theory, Scientific Theory

• School: University of Guelph
• Department: Biology
• Course: BIOL 1020
• Professor: Annette Nassuth

Document Summary

Biological evolution: change in the characteristics of a population of organisms that occur over the course of generations. Scientific theory: statement providing the current best explanation of how the universe works. Theory of evolution: all species present earth today are descendants of a single common ancestor, and all species represent the product of millions of years of accumulated evolutionary changes. Modern animals, plants, fungi, bacteria, and other living things are related. Living things, through various processes, have been diverging from a common ancestor since life originated. Charles dar(cid:449)in"s e(cid:454)periences ~ outline of theor(cid:455) of e(cid:448)olution. Quit studying medicine and took a 5 year voyage on hms beagle in 1831 to south. Dar(cid:449)i(cid:374) (cid:449)as ship"s (cid:374)aturalist, collecti(cid:374) di(cid:448)erse a(cid:374)i(cid:373)als a(cid:374)d pla(cid:374)ts. Strongly influenced by: rainforest of brazil: fossil collection, birds and reptiles of galapagos islands. Evolution can occur by the process of natural selection (but this is not the only way populations evolve. Organizes biological diversity in a nested hierarchy.