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Nelson Mack Mr. DeFrancesco May 30, 2004 4th Quarter Assessment Table of Contents Section 1 Page 1 - Fossils Page 2 - Mold-Cast Page 3 - Lamarck's Explanation Page 4 - Darwin's Voyage of the Beagle Page 5 - Natural Selection Page 6 - Population Page 7 - Desent with Modification Page 8 - Adaptive Advantage Page 9 - Homologous Structures Page 10 - Analogous Structures Page 11 - Vestigial Structures Page 12 - Similarities in Embryology Page 13 - Coevolution Page 14 - Convergent Evolution Page 15 - Divergent Evolution Page 16 - Adaptive Radiation Page 17 - Artificial Selection Section 2 Page 18 - Bell Curve Page 19 - Gene Pool Page 20 - Hardy-Weinberg Genetic Equilibrium Page 21 - Mutation Page 22 - Immigration Page 23 - Emigration Page 24 - Gene Flow Page 25 - Genetic Drift Page 26 - Assortative Mating Page 27 - Stabilizing Selection Page 28 - Directional Selection Page 29 - Disruptive Selection Page 30 - Sexual Selection Page 31 - Biological Species Concept Page 32 - Geographic Isolation Page 33 - Reproductive Isolation Page 34 - Prezygotic Isolation Page 35 - Postzygotic Isolation Section 3 Page 36 - Paleoanthropologists Page 37 - Primate Characteristics Page 38 - Anthropoid Characteristics Page 39 - Human Characteristics Page 40 - Austroalopithecus Afarenis Page 41 - Austroalopithecus Africanas Page 42 - Austroalopithecus Biosei Page 43 - Austroalopithecus Robustus Page 44 - Homo Habilis Page 45 - Homo Erectus Page 46 - Homo Sapiens Page 47 - Neanderthals Page 48 - Cro-Magnons Page 49 - Multiregional Hypothesis Page 50 - Recent-African-Orgin Hypothesis Glossary: Fossils A fossil is the remains or traces of a once-living organism. Mold-Cast A mold-cast is a type of fossil that is an imprint or model of an organism on a rock. Lamarck’s Explanation Lamarck’s explanation was that similar species descended from a common ancestor, thus living species were descended from similar distinct species evident in the fossil record. Darwin’s Voyage of the Beagle Darwin’s Voyage of the Beagle was a collecting expedition where Darwin was a naturalist. He collected specimens and kept careful records of his observations. Darwin studied geology and allowed him to think about the possibility that environments may be modified over long periods of time. On this voyage Darwin collected many fossils and observed thousands of species of organisms. Natural Selection Natural selection is the process by which organisms with favorable variations reproduce at higher rates than those without such variations. Population The population is all the members of a species that live in the same area and make up a breeding group. Descent with Modification Descent with modification states that the newer forms appearing in the fossil record are actually the modified descendents of older species. Adaptive Advantage An adaptive advantage is a favorable trait that is used to help an organism in something that it is not use to doing. Homologous Structures Homologous structures have similar features that originated in a shared ancestor. Analogous Structures Analogous structures have identical functions, and they look somewhat alike. Vestigial Structures Vestigial structures are useful to an ancestor, but they are not useful to the modern organism that has them. Similarities in Embryology Similarities in embryology occur in the early stages of development. All vertebrate embryos are similar, but those similarities fade as development proceeds. Co evolution Co evolution is the mutual evolution of two different species interacting with each other. Convergent Evolution Convergent evolution is the process by which unrelated species become more similar as they adapt to the same kind of environment. Divergent Evolution Divergent evolution is the process of two or more related species becoming more and more dissimilar. Adaptive Radiation Adaptive radiation is an evolutionary pattern in which many species evolve from a single ancestral species. Artificial Selection Artificial selection is the breeding of organisms by humans for specific phenotypic characteristics. Bell Curve A bell curve shows the population of an animal in a bell shaped. Gene Pool A gene pool is all the genes for all of the traits in a population. Hardy-Weinberg Genetic Equilibrium The Hardy-Weinberg genetic equilibrium shows that allele frequencies in a population tend to remain the same from generation to generation unless acted on by outside influences. Mutation A mutation is a change in DNA. responds. Certain chemicals affect the way DNA Immigration Immigration is the movement if individuals into a population. Emigration Emigration is the movement of individuals out of a population. Gene Flow Gene flow is the process of genes moving from one population to another. Genetic Drift A genetic drift is a shift in allele frequencies in a population due to chance. Assortative Mating Assortative mating is the selection of a mate based on the similarity characteristics. Stabilizing Selection Stabilizing selection is a type of natural selection in which the average form of a trait causes an organism to have an advantage in reproduction. Directional Selection Directional selection individuals that display a more extreme form of a trait have greater fitness than individuals with an average form of the trait. Disruptive Selection Disruptive Selection is a type of natural selection in which individuals with two extreme forms of a trait have an advantage. Sexual Selection Sexual selection is the preferential choice of a mate based on a specific phenotype trait. Biological Species Concept The biological species concept is the principle that defines a species as those organisms that can produce offspring together. Geographic Isolation Geographic isolation is the physical separation of members of a population.. Reproductive Isolation Reproductive isolation is the inability for formerly interbreeding organisms to produce offsprings. Prezygotic Isolation Prezygotic isolation is a barrier to successful breeding that occurs before fertilization, such as differences in mating time or behavior. Postzygotic Isolation Postzygotic isolation is a barrier to successful breeding that occurs after fertilization, such as the production of nonviable or sterile offspring. Paleoanthropologist A paleoanthropologist is a scientist who studies fossil evidence of human evolution. Primate Characteristics Some primate characteristics are that they live in trees, have movable fingers and toes, and most have flattened nails rather than claws. Anthropoid Characteristics Some anthropoid characteristics are a well-developed collarbone, rotating shoulder joints, and partially rotating elbow joints. They also have an opposable thumb, an opposable big toe, and a prehensile foot. Human Characteristics Some human characteristics are the ability to walk on two legs, a curled shape pelvis, and a curve shaped spine. They also have shorter toes and enlarged brains. Australopithecus Afarenis Austroalpithecus Afarenis is a new fossil that means “southern ape of the Afar Valley.” Australopithecus Africanus Australopithecus Africanas are fossils that date about 2.3-3 million years ago. Australopithecus Biosei Australopithecus biosei are fossils that date from 1- 2.6 million years ago. Australopithecus Robustus Australopithecus Robustus are fossils that date from 1- 2.6 million years. Homo Habilis Homo Habilis is a new species of fossils that were discovered with stone tools. It means “handy man.” Homo Erectus Homo erectus are fossils that were found on the Pacific islands of Java, China, Europe, and Africa. It means “upright man.” Homo Sapiens Homo sapiens, early now extinct form of our species probably replaced Homo erectus. Neanderthals Neanderthals are an early group of Homo sapiens. They had heavy bones, thick brow ridges, protruding teeth, and a larger brain. Cro-Magnons Cro-Magnons are the first fossil skeletons found in caves in southwestern France. The skeletons resembled that of modern day humans. Multiregional Hypothesis A multiregional hypothesis is that regional differences in phenotype have been developing for well over a million years. Recent-African-Origin Hypothesis A recent-African-origin hypothesis states that modern Homo sapiens originated in Africa about 100,000- 200,000 years ago. Bibliography : Page 1 – Fossils http://almashriq.hiof.no/lebanon/500/550/551/abisaad/fossils-981025 Page 2 - Mold-Cast http://www.wesleyan.edu/ctgeology/DinoStPkTour/TrackMoldCast.JPG Page 3 - Lamarck's Explanation http://www.bol.ucla.edu/~amberm/images/animals.gif Page 4 - Darwin's Voyage of the Beagle http://www.sc.edu/library/spcoll/nathist/darwin/beaglesydney.jpg Page 5 - Natural Selection http://biology.clc.uc.edu/graphics/bio106/nat-sel.jpg Page 6 – Population http://cas.bellarmine.edu/tietjen/Ec&Ev_Distance_learning/EcologyIntro/population.gif Page 7 - Desent with Modification http://www.aaas.org/spp/dser/evolution/perspectives/images_miller/image1.gif Page 8 - Adaptive Advantage http://necsi.org/projects/evolution/co-evolution/predprey/lion+zebra.jpg Page 9 - Homologous Structures http://www.biologycorner.com/resources/homobones.jpg Page 10 - Analogous Structures http://biodidac.bio.uottawa.ca/ftp/BIODIDAC/ZOO/GENERAL/DIAGBW/GENE009B Page 11 - Vestigial Structures http://www.angelfire.com/dc/apgenetics/vestigial.structures.jpg Page 12 - Similarities in Embryology http://www.giddings.txed.net/biology/ch18.h7.jpg Page 13 – Coevolution http://www.selu.edu/Academics/Faculty/smartin/images/bird.jpg Page 14 - Convergent Evolution http://www.pmc.noaa.gov/di/porpoise.gif Page 15 - Divergent Evolution http://www.brooklyn.cuny.edu/bc/ahp/LAD/C21/graphics/C21_Divergent_1.GIF Page 16 - Adaptive Radiation http://www.agen.ufl.edu/~chyn/age2062/lect/lect_11/18_20.GIF Page 17 - Artificial Selection http://geology.asu.edu/jfarmer/archived_classes/glg102fall00/0567/0567picts/artsel.jpg Page 18 - Bell Curve http://aspin.asu.edu/~travis/scene/redesign_scene/habitat/bell_curve Page 19 - Gene Pool http://www.bionet.nsc.ru/booklet/images/imagesLaboratories/Kushnir3Big.jpg Page 20 - Hardy-Weinberg Genetic Equilibrium http://w3.dwm.ks.edu.tw/bio/activelearner/18/images/ch18c5.gif Page 21 – Mutation http://www.ebi.ac.uk/2can/disease/genes2.html Page 22 – Immigration http://mdhsimage.mdhs.org/Library/Images/Mellon%20Images/Z24access/ Page 23 – Emigration http://www.utb.halmstad.se/nh/undervisningsplanscher/emigration.jpg Page 24 - Gene Flow Page 25 - Genetic Drift http://www.pbs.org/wgbh/evolution/library/06/3/images/l_063_03_l.jpg Page 26 - Assortative Mating http://www.nature.com/nature/journal/v387/n6633/images/387551aa.eps.2.gif Page 27 - Stabilizing Selection http://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/img022.jpg Page 28 - Directional Selection http://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/img021.jpg Page 29 - Disruptive Selection http://www.umbc.edu/bioclass/biol100/powerpoints/lecture10/img026.jpg Page 30 - Sexual Selection http://www.auduboninstitute.org/ani/desktops/1024/peacock.jpg Page 31 - Biological Species Concept http://images.google.com/imgres?imgurl=taxonomy.zoology.gla.ac.uk Page 32 - Geographic Isolation http://mercury.bio.uaf.edu/courses/biol105/Lectures/Section4/2d1b.jpg Page 33 - Reproductive Isolation http://www.biologie.uni-hamburg.de/bonline/fo38/10.jpg Page 34 - Prezygotic Isolation http://www.agen.ufl.edu/~chyn/age2062/lect/lect_11/18_09.GIF Page 35 - Postzygotic Isolation http://www.usc.edu/dept/LAS/biosci/edmands/F1MaleT.gif Page 36 – Paleoanthropologists http://www.mnh.si.edu/rc/images/masters/53490_sm_res_page_left_crop.jpg Page 37 - Primate Characteristics http://natzoo.si.edu/Animals/Primates/images/covers/cover_Lemur.jpg Page 38 - Anthropoid Characteristics http://www.primate.wisc.edu/pin/images/img1921.gif Page 39 - Human Characteristics http://www.academicart.com/skeleton_by_christina.jpg Page 40 - Austroalopithecus Afarenis http://www.wsu.edu:8001/vwsu/gened/learnmodules/top_longfor/timeline/afarensis/ Page 41 - Austroalopithecus Africanus http://www.gurche.com/webgraphics/ap_afric_064_fs.jpg Page 42 - Austroalopithecus Biosei http://elearn.coconino.edu/public/11729200380/australopithecus_boisei.jpg Page 43 - Austroalopithecus Robustus http://www.mnh.si.edu/anthro/humanorigins/ha/images/SK46l.jpg Page 44 - Homo Habilis http://www.hunterian.gla.ac.uk/collections/museum/hominid/first_human/habilis/other_in formation/habilis Page 45 - Homo Erectus www.sc.edu/union/Sears/5EvolutionTax/HomoErectus.jpg Page 46 - Homo Sapiens http://www2.uol.com.br/cienciahoje/chdia/n867a.jpg Page 47 – Neanderthals http://www.sonoma.edu/anthropology/anclub/skull2.jpg Page 48 - Cro-Magnons http://www.tomlitoo.com/racontemoilhistoire/prehistoire/imagepresentation/enfantspeign antcouleur200.jpg Page 49 - Multiregional Hypothesis http://faculty.uca.edu/~benw/biol4415/lecture12a/img023.jpg Page 50 - Recent-African-Origin Hypothesis http://www.geocities.com/palaeoanthropology/OutofAfrica.html