PPT-FOSSILS & EVOLUTIONARY RATE

Dr Jagdish kaur PGGCSector 11 Chandigarh SIMPLY THE CHANGES OVER TIME EVOLUTION Human Evolution The evolutionary timeline is divided into sections of time called eras which are then divided into smaller units of time called periods. Enter. Most often young people hear the word “fossil” and imagine dinosaurs. . However,. . no. dinosaur fossils have been found in West Virginia’s sedimentary rocks. . . West . Virgina’s. Khaled Rasheed. Computer Science Dept.. University of Georgia. http://www.cs.uga.edu/~khaled. Genetic algorithms. Parallel genetic algorithms. Genetic programming. Evolution strategies. Classifier systems. Cornell Notes pg. 137. What is a Fossil?. Preserved remains or traces of plants, animals, and other organisms.. Types of Fossils:. mold fossils.  (an impression made in the rock- like a footprint in sand). By Parker, Emma, Finn, Liam, and Nils. Introduction. A fossil is a mold of a old living thing. A fossil can also be an imprint of an animal. A fossil is not always a bone, a fossil is not always a stone.. Materialism. By Frank W. Elwell. Note:. This . presentation is based on the theories of Steven K. Sanderson. . as presented in his books listed in . the bibliography. . A more complete summary of . vs.. poker games. Yikan. Chen (yc2r@virginia.edu). Weikeng. Qin (wq7yt@virginia.edu). 1. Outline. 2. Evolutionary Algorithm. Poker!. Artificial Neural Network. E-ANN. Evolutionary algorithm. 3. Evolutionary algorithm. Charles Darwin. Father of Evolution. Proposed a way . how. evolution works. How. did creatures change over time?. by . natural selection. Collected a lot of . evidence to support. his ideas . 1809-1882. Part II. Types . of Fossils:. Molds. . Casts. Trace fossils. Petrified . fossils. Body. Mold. . fossils. - . a visible empty . space . that was left after an . organism . was . buried in sediment and then . Molds and Casts. Carbon Films. Preserved Remains. Trace Fossils. Petrified Fossils - . How do they form?. Mineral rich water soaks into cracks and crevices. Minerals “precipitate” and fill the spaces. . Fossils are the . preserved remains . or traces of . living. things. Most fossils form when . living. things die and are buried by . sediments. . The . sediments. slowly harden into . rock. Can you name any dinosaurs?. Do you know what they looked like or how they moved?. Scientists have been able to tell us many things about organisms (such as dinosaurs) that lived millions of years ago.. Fossils have helped determine approximately when life first appeared, when plants and animals arrived on land, and when organisms became extinct.. CONDITIONS NEEDED FOR FOSSIL FORMATION. Whether or not a dead organism becomes a fossil depends upon how well it is protected from scavengers and agents of physical destruction, such as waves and currents.. Prove It!. Biogeography. Homologous and Analogous Structures. Fossil record. biogeography. The geographic distribution of plants and animals over the surface of the Earth. Pangaea. 270 million years ago all of the planet’s land mass was combined into one super continent. 8. th. grade. Compare . fossils found in sedimentary rock to determine their relative age. . . http://www.brainpop.com/science/diversityoflife/fossils. /. . Standard for this lesson: . How can we tell what lived when?.