NATS 1675 Lecture : (2) Chapter 22- Evolution.docx
Document Summary
Evolution comes from the latin word evolvo = unroll. Evolution in the broadest sense is the unfolding of a changing continuity , it is change over time: evolution can occur in all animate options and fields, in many different areas. Organic evolution the evolution of living organisms i. e. , inheritable change in lines of successive generations: can be divided in to two sub topics: microevolution & macroevolution. Evolution is also the concept that there is a kinship among all forms of life because all evolved over time from one common ancestor. Time the age of the earth is a bit over 4. 6 billion years. If the history is the earth is compressed into a single year starting 1 january: 31 december (9:07 pm) ancestral humans of the genus homo; (11:45 pm) homo sapiens (our species) appeared. Radiometric- (chart that was shown)using radioactive elements that are found, to try to determine roughly the age of something.
