PPT-Darwin’s Case For Evolution

Struggle for existence High birth rates and shortage of lifes needs Food and living space Fitness ability to survive and reproduce in your environment Survival of the fittest Adaptation Characteristic to . 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.. and the . New Biology. Andreas Vesalius, . Fabrica. (1543). The Revolution in . S. urgery. 1700s: . “Although . medical students usually learned some rudimentary anatomy, this was considered a useful but not vital adjunct to on-the-job experience. And when patients died on the operating table as a result of ignorance and blundering, as they frequently did, few, if any, lessons were learned from the outcome.” . 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. different. species alive today. All life shares . common. characteristics. The Earth is very . old. Life. is very . old. Life has . changed. over time. The changes have been . little changes over long periods of time. Charles Darwin was born February 12 1809 in Shrewsbury England. . He came from a long line of doctors, his father was a medical doctor, and his grandfather was a botanist.. He was described as someone who “loved to explore nature”. 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?. 15-1 The Puzzle of Life’s Diversity. Humans share the earth with millions of other kinds of organisms of every imaginable shape, size, and habitat.. . Naturalism . is the doctrine that scientific procedures and laws are applicable to all phenomena.. Evolutionary Theory. . has roots in ancient Greece, as well as Eastern Sources. In fact, evolution is part of the larger question of cosmogony, the study of the origin of the cosmos.. Texas Horned Lizard. Defense Behavior Adaptations. Its horns are extensions of its cranium and contain true bone.. When threatened it will puff up its body to cause its spiny scales to protrude, which makes it hard to swallow.. 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 Course Objectives. Describe the importance of Jean-Baptiste Lamarck, Charles Darwin, Alfred Wallace, Charles Lyell, Stephen Jay Gould, to the development of evolutionary theory.. Describe five ways that fossils can form including amber, tar pits, petrification, sedimentary rocks, and ice.. 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.