DANCEST 805 Lecture Notes - Lecture 15: Fleeming Jenkin, Macroevolution, Intelligent Design
Document Summary
Random variations at birth, together with limited availability of resources, could explain evolution on basis of natural selections. Environment results in continuation and multiplication of organisms with certain genetic features and hinders the reproduction of organisms with other genetic features: first type of features: favorable, second type: unfavorable. Only organisms that fit within environment and can produce viable offspring survive. Book by darwin (1859) in which he presented the evolutionary theory. Darwin failed to explain how a single new plant or animal could come to dominate rest. Fleeming jenkin: organism with a new feature is placed amid a group of other organisms. New feature will not expand but dilute in the pool of existing features until in the end virtually nothing remains. Genetic material doesn"t adapt to environment cannot change in a desirable direction. Material now and then has random alteration.
