Biological Evolution and The Darwinian Thoery
Evolution and the scientific process
Test of Hypothesis: Studying fossils and comparitive morphology
Communication to other scientists: the publishment of darwin's ideas
Explaination (Hypothesis): " All animals belonging to the same group have common ancestor
Observation:The classification of species in similar groups
Darwin's misconceptions
Evolution and religion is incompatibale
many scientists who are devoutly religious believe in evolution
Evolution is not scientific
it is testable and observable and thus scientific
Fossil record not complete
Fossilazation is a rare event
It is a theory about the origins of life
Darwin was concerned about the way life changed after creation
Evolution is a "ladder of progress"
there is no ladder, it is a continous progress
Men has evolved from apes and monkies
Man, apes and monkies have same ancestor
Darwin ideas
His Ideas
Like Newton, he formulated a theory that changed people's perspective in a more fruitfula way
Natural selection: nature select those individuals best suited for the environment
it is a process of interaction bet. change, variation,Competition and excess
many diffrences are inherited and can be passed on to offspring
individual members are not identical but vary
Darwin and Wallace proposed the missing mechanism
Darwin's Journey
he also noticed that they varied from one island to another
Darwin noticed the Finches and the variation of their beaks
Darwin's Challenges
Mendel: anserwed the question be saying that organisms acquired through genes
Challenging question to Darwin
What is the ultimate source of variation?
Speculations about the origins of life
these ideas were not able to propose a good mechnism to explain how organisms vary
Greeks
evolution has created the world's orgnic coherence from a formless condition
Genesis
God created life in six days
christian theologians
earth has power to produce organisms
