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. . Scientific Theory. Social use of the word “theory”. Not the same as in science. Implies a hunch or a casual guess. Scientific Theory. 1. Highly probable explanation based on vast collections of scientific data. 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”. Section 1: The Theory of Evolution by Natural Selection. Darwin Proposed a Mechanism for Evolution. In 1859, the English naturalist Charles Darwin published convincing evidence that species evolve, and he proposed a reasonable mechanism explaining how evolution occurs.. EARLY THEORIES OF EVOLUTION. DARWIN, WALLACE, & . THE ORIGIN. DARWIN’S THEORIES OF EVOLUTION. WHAT EVOLUTION IS NOT. MODERN SYNTHESIS. BIOGEOGRAPHY. SCHOOLS OF SYSTEMATICS. Early theories of natural history and classification treated living things as immutable and were . Chapter 8B. History of Evolutionary Theory. I. History of Evolutionary Theory. Definitions. 1. Evolution. Evolution. The gradual change that causes something to improve or become more complex. Ex.) The . . 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.. 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.. 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 wallace. and was explained in book “ on the origin of species by means of Natural Selection . . Darwin put the theory based on his observations as he travelled round the world on the ship Beagle.. 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.