PPT-Chapter 15 Darwin’s Theory of Evolution

Brain Warm Up What different ways do these animals use to move about What traits does each animal have that help it move about as it does 151 The Puzzle of Lifes Diversity Humans share the earth with millions of other kinds of organisms of every imaginable shape size and habitat. BY JESSICA ROUT. THEORY OF . Evolution!. Darwin's theory of evolution. The basic idea behind the theory of evolution is that all the different species have evolved from simple life forms. These simple life forms first developed more than three billion years ago - the Earth is about 4.5 billion years old. The timeline below shows some of the key events in the evolution of life forms on Earth, from the first bacteria to the first modern humans.. Radinka. Charles Darwin. Charles Darwin was born in February 1809 in Mount Shrewsbury UK. . He was educated in Shrewsbury School then sent to Edinburg University to study medicine. Two years later in 1827, he was beginning a degree in divinity (study of religion) at Cambridge. . Change over time…. Geology. Began to study rock layers called strata. George Cuvier. Studied fossils. Found extinct species and noticed the deeper the fossil the more unique. Catastrophism. Charles Lyell. Stephen Jay Gould. Stephen Jay Gould (1941-2002). an American . paleontologist. , . evolutionary biologist. and . historian of science. . He was also one of the most influential and widely read writers of . Theories of Inheritance. Chapter 7. Key Concepts. Neither Darwin nor Wallace knew how variation could be produced in Nature. . . What do we attribute this to now? . The accepted theories of inheritance were the . Born: 12. th . February, 1809, in Shrewsbury. Died: April 19. th. , 1882, in . D. owne, due to heart problems. In 1831, he set sail on the HMS Beagle for a 5-year voyage around the Earth. He married on January 29. Evolutionary Ideas. A. lthough Darwin is given much credit for evolutionary theory, he was not the first person to come up with the idea.. Evolution is the change in a population over time.. The concept of evolution had been discussed for more than 100 years prior to Darwin’s theory.. Background Info: Charles Darwin. Set sail on the HMS . Beagle. . 5 year trip around the world. Naturalist: a person who studies the natural world. He wanted to learn about the living things he saw on the voyage . Charles Darwin (1809-1882). Charles Darwin—A Summary. British Naturalist. Sailed aboard the . H.M.S. Beagle in 1831. Observed the wide variety of different animals in the Galapagos Islands on this trip. Early scientists proposed ideas about evolution. . Evolution is the biological change process by which descendants come to differ from their ancestors.. A species is a group of organisms that can reproduce and have fertile offspring.. & . Natural Selection. studied medicine at Edinburgh University (1825-1827) where the sight of blood and surgery without anesthetics repulsed him. studied to become a clergyman at Cambridge University (1827-1831). IntroductionKnowledge requires us to possess both Facts and Ideas; that every step in our knowledge consists in applying the ideas and the conceptions furnished by our minds to the facts which observ Week 9:. By Mackenzie and Emily. Michael Banton, . Racial Theories . (Cambridge: Cambridge University Press, 1998), Ch. 4, ‘Race as Subspecies’, pp. 81-116. ‘With the recognition that plant and animal populations were distinguished by the gene frequencies they had acquired in the course of evolution… a new foundation was laid for biological science’ (p. 116).. Adaptation. Adaptations are inherited traits that increase a group’s chance of . survival & reproduction. This type of finch has a thick beak .  adaptation for cracking open seeds. Variation.