90 likes | 288 Views
Theory of evolution. By: Kaeidra Chavis November 29, 2011. What is Evolution. - Evolution is any change across successive generations in the heritable characteristics of biological populations. .
E N D
Theory of evolution By: KaeidraChavis November 29, 2011
What is Evolution - Evolution is any change across successive generations in the heritable characteristics of biological populations. - Evolutionary processes give rise to diversity at every level of biological organization, including species, individual organisms and molecules such as DNA and proteins.
Scientists Who contributed to the Theory of evolution • Anaximander • Charles Darwin • Aristotle
Anaximander - Anaximander made the first attempt to offer an explanation of Evolution - Anaximander put forward the idea that humans had to spend part of this transition inside the mouths of big fish to protect themselves from the Earth's climate until they could come out in open air and lose their scales.
Aristotle • Aristotle was a Greek philosopher • Aristotle’s beliefs were perceived as a “ladder of life” • His idea was that all species could be put in order, from the "lowest" to the "highest,“ • starting with worms on the bottom and the almighty man on the top
CHARLES darwin - In a nutshell, when random genetic mutations occur in an organism's genetic code, the beneficial mutations are preserved because they aid survival. Natural Selection - The modern theory of evolution was developed by Charles Darwin, an English naturalist, in the 19th century - complex creatures evolve from more simple ancestors naturally over time
Natural Selection • Charles Darwin’s Theory • The central concept of natural selection is the evolutionary fitness of an organism. • “Survival of the Fittest” • Natural selection is to preserve and accumulate minor advantageous genetic mutations.
Religion Based Evolution • all the forms of life that exist on planet earth today have been created by the almighty God. • Creationists believe the Bible’s explanation that God created a number of groups of animals and plants