Set: Physical Anthropology Exam 1

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All 207 terms

TermDefinition
ABO Blood GroupsAn example of a trait that is determined by multiple alleles
Adaptive nicheThe entire way of life of an organism: where it lives, what it eats, how it gets food, how it avoids predators, etc.
Adaptive Radiationprocess by which a single species or small group of species evolves into several different forms that live in different ways; rapid growth in the diversity of a group of organisms
Affiliativefriendly behavior that promote social bonds
Agglutinationthe process of coming together
Alfred Russel Wallacea British naturalist, the one who independently proposing a theory of natural selection which prompted Charles Darwin to publish his own more developed and researched theory sooner than he had intended
Alleleone of two alternate forms of a gene that can have the same locus on homologous chromosomes and are responsible for alternative traits
Allometrystudy of the relative growth of a part of an organism in relation to the growth of the whole
AlloparentingA common behavior in many primate species whereby individuals other than the parents hold, carry, and in general interact with infants.
Allopatric SpeciationThe formation of a new species as a result of an ancestral population's becoming isolated by a geographic barrier.
AltruismBehavior that benefits another individual at some potential risk or cost to oneself
Amino acidssmall units that are linked together chemically to form large protein molecules
AnagenesisA pattern of evolutionary change involving the transformation of an entire population, sometimes to a state different enough from the ancestral population to justify renaming it as a separate species; also called phyletic evolution.
AnalogiesSimilarities between organisms based strictly on common function with no assumed common evolutionary descent.
Anthropocentricinterpreting everything in terms of human experience and values
Anthropoideathe suborder of primates consisting of monkeys, apes, and humans
Anthropometrymeasurement and study of the human body and its parts and capacities
AntibodiesProtein that is produced by lymphocytes and that attaches to a specific antigen.
Antigenschemical compounds to which antibodies bind
Apomorphicderived or advanced characteristics that arose relatively late in members of a group and therefore differ among them; advanced
Arborealof or living in trees
Arboreal hypothesisThe traditional view that primate characteristics can be explained as a consequence of primate diversification into arboreal habitats.
Assortative matingthe type of mating that occurs when an organism selects a mating partner that resembles itself
Autosomeany chromosome that is not a sex chromosome
Aye Ayesolitary, special finger, 1-0-1-3, 1-0-0-3 dental
Balanced PolymorphismThe ability of natural selection to maintain diversity in a population.
Behavioral ecologyStudy of how behaviors increase individual reproductive success
Behavioral Plasticitychanging behavior because of certain circumstances
Binocular visionThe ability to merge visual images from both eyes, thereby providing depth perception and a three dimensional view of the world.
Binomial nomenclatureNaming an organism with its genus and species name
Biological continuumthe notion that humans aren't part of any kind of evolutionary hierarchy. It's more of a continuum, a set of relationships that all fall under one integrated spectrum.
Blending Inheritanceeach trait of the offspring is a mixture of traits of both parents
BonobosAfrica, pop down to 1000's, male/female bond=societal core. probs solved through sex, female receptive all yr. round. famous for occasionally walking on two legs
Brachiationa method of movement that uses the arms to swing from branch to branch
Bush meatsuch as a severed head of a lowland gorilla in the Congo, is consumed as a source of protein by local people in parts of West Africa and sold in the national and international marketplace
Callitrichidaesmall body size, re-evolved claws, procumbent incisors, 2.1.3.2, new world monkey
Robert FitzroyCaptain of the Beagle, advertised for a companion on his voyage, which Darwin filled.
Carolus LinneausDuring 1735 the view of classification in hierarchial fashion; animals, plants, minerals, etc.
Catarrhinesold world monkeys, apes, humans. narrow noses, nostrils point down, 2123 dental pattern (synapomorphy), some arboreal, some terrestrial, none with prehensile tails
CatastrophismThe hypothesis by Georges Cuvier that each boundary between strata corresponded in time to a catastrophe, such as a flood or drought, that had destroyed many of the species living there at that time.
Cebidaelarger of the new world monkeys, 2.1.3.3., some prehensile tails, arboreal, new world monkey
CercopithecidaeOld World monkeys: guenon
CercopithecinesThe subfamily of Old World monkeys that includes baboons, macaques, and guenons.
Charles Darwinbritish biologist who introduced the ideas of natural selection and evolution; argued that specific behaviors evolved because they led to advantages in survival or reproduction
Charles LyellPrinciples on Geology- the earth is a very old planet that is constantly changing; slowly- gradualism
Chimpanzeean African ape that is related to the gorilla but is smaller and spends more of its time in trees
Chromosomesthread like structures that have genetic info that is passed down from one generation to the next
CladeA taxonomic grouping that includes only a single ancestor and all of its descendants
Cladisticsa system of phylogenetic classification using shared derived characters and the recency of ancestry is the sole criterion for grouping taxa
Cladogenesisthe evolutionary change and diversification resulting from the branching off of new taxa from common ancestral lineages
Cladograma diagram that is based on patterns of shared, derived traits and that shows the evolutionary relationships between groups of organisms
Co-dominantWhen both phenotypes appear in heterozygous individuals; Examples: Blood type A crossd with B = type AB
Codona specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid
ColobinesThe subfamily of Old World monkeys that includes the African colobus monkeys and Asian langurs.
Complex traits"continuously distributed," no clear boundaries so no exact categories (height, hair color; involve the environment)
Continental Drifttheory that states that there was a supercontinent that split into the continents of today
Continuous VariationThe outcome of the number of enviromental factors influencing the expression of traits in a population
Core Areaa region in the home range that is used frequently, commonly consist of trees, shelter and buildings, and water resources
Crossing Overthe interchange of sections between pairing homologous chromosomes during the prophase of meiosis
Cultural AnthropologyThe study of human society and culture, the subfield that describes, analyzes, interprets, and explains social and cultural similarities and differences
CuspsThe elevated portions (bumps) on the chewing surfaces of premolar and molar teeth.
Dataa collection of facts from which conclusions may be drawn
Deep Timethe idea that the Earth is older than we can imagine
Demea population of related species; a local pop of closely related interbreeding species; get increase of inbreeding; can outcross as much as possible, but still be more inbreds
Dental Formulaa short hand method of describing the number of each type of tooth in one half of one jaw on a mammal
Derived Traitscharacteristics found only in one descendent branch and in the ancestral form
Diploid NumbersTotal chromosome number in cells that have a pair of each type of chromosome characteristic of the species.
Directional Selectionform of natural selection in which the entire curve moves; occurs when individuals at one end of a distribution curve have higher fitness than individuals in the middle or at the other end of the curve
Discontinuous variationcharacteristics that have either one phenotype or another eg tongue rolling, eye colour etc.
DisplaysHighly conventionalized behaviors structured as two-part exchanges
Disruptive Selectionboth forms at extreme endfavors are favored, intermediate forms eliminated
Diurnalbelonging to or active during the day
Divergent selectionone side or the other of the bell curve is favored
Dominance HierarchiesA linear "pecking order" of animals, where position dictates characteristic social behaviors
Dominant traitsTend to appear in each generation, affected individuals usually heterozygous if trait rare
Ecological Nichestotal use of biotics and abiotic resourses in enviornment
Empiricalbased on observation or experiment
Encephalizationmeasure of the positive deviation with respect to the average brain/body size trend for mammals
Endogamymarriage within one's own tribe or group as required by custom or law
Erasmus DarwinEnglishman, 1731-1802, grandfather of Charles Darwin, wrote concepts of time for life to evolve, competition of resources, and the importance of environment in the evolutionary process
EstrusPeriod of sexual receptivity in female mammals (except humans), correlated with ovulation.
EthogramA complete inventory or descriptive catalog of the behavior patterns of a given species
Evolutiona process in which something passes by degrees to a different stage (especially a more advanced or mature stage)
Evolutionary systematicmethod of constructing phylogenies that involves weighing characters by their presumed evolutionary significance
Exogamymarriage to a person belonging to a tribe or group other than your own as required by custom or law
Extinctiondisappearance of a species from all parts of its geographical range
Fitnessability of an organism to survive and reproduce in its environment
Fixity of specieseverything on earth is as it was created, stasis
Forensic AnthropologyPrimarily concerned with the identification and examination of human skeletal remains, which can be used to reveal the sex, approximate age, race, and the presence of skeletal injury of a subject.
Founder Effectwhen a few individuals become isolated from a larger population, this smaller group may establish a new population whose gene pool isn't reflective of the source population
Frenuluma midline fold of tissue that connects the tongue to the floor of the mouth
Frugivorousfeeding on fruit
Galagoagile long-tailed nocturnal African lemur with dense woolly fur and large eyes and ears
GametesReproductive Cells
Genesequence of DNA that codes for a protein and thus determines a trait
Gene Flowthe exchange of genes with another population
Gene Poolthe combined genetic information of all members of a particular population
Genetic BottleneckThe concept that, when populations are severely reduced in size, they may lose some of their genetic diversity
Genetic driftThe gradual changes in gene frequencies in a population due to random events
Genomethe complete genetic material contained in an individual
Genotypegenetic makeup of an organism
Genusa classification grouping that contains similar, closely related organisms
Geological time scaleA time scale established by geologists that reflects a consistent sequence of historical periods, grouped into four eras: Precambrian, Paleozoic, Mesozoic, and Cenozoic.
Georges Cuvier1769-1832, opponent of Lamarck, introduced the concept of extinction to explain the disappearance of animals represented by fossils
Gibbonhominiod. brachiation, asia, longer arms than legs, tiny thumb set back, monogamous, male/females dilineate territory with whoops and songs, very tree dwelling=led to different numbers of chromosomes
Gorillalargest. africa. primarily terrestrial, knuckle walking, groups consist of one large silver back and a few adult females and offspring, no meat, behave similar to us, can catch ebola.
GradualismThe theory that evolution occurs slowly but steadily
Gregor MendelAugustinian monk and botanist whose experiments in breeding garden peas led to his eventual recognition as founder of the science of genetics (1822-1884)
GroomingIndicates submission or reassurance in dominance hierarchies; picking through fur to remove dirt, parasites, and other materials that may be present. Reinforces social relationships.
Haploid NumbersTotal chromosome number in cells that have one of each type of chromosome characteristic of the species.
Haplorhini(dry nose) A suborder of the primates that includes New World monkeys, Old World monkeys, tarsiers and apes (including humans).
HeterodontHaving different kinds of teeth; characteristic of mammals, whose teeth consist of incisors, canines, premolars, and molars.
Heterozygoushaving two different alleles for a trait
HMS BeagleShip that set sail on December 17th, 1831, carried Charles Darwin on his legendary voyage
Home rangethe area in which an animal normally ranges
Hominoideaanthropoid apes and human beings
HomologiesSimilarities between organisms based on descent from a common ancestor.
Homologous Chromosomeschromosomes that have the same sequence of genes and the same structure
Homoplasysimilar structure or molecular sequence that has evolved independently in two species
Homozygoushaving two identical alleles for a trait
Hylobatidaetrue brachiation, gibbons and siamangs AKA lesser apes
Hypothesispossible explanation for a set of observations or possible answer to a scientific question
Inclusive fitnessThe sum of an individuals own reporductive success plus the effects the organism has on the reproductive success of related others.
Intermembral indexratio of arm length to leg length
Jane Goodallstudied chimps, noticed tool use, cannablism, "warfare", and hunting behaviors
Jean Baptiste Lamarckasserted that all forms of life had arisen through a long process of continuous adjustment to the environment-helped prepare way for Darwin
Karl LandsteinerUnited States pathologist (born in Austria) who discovered human blood groups (1868-1943)
KaryotypeA picture of all the chromosomes in a cell arranged in pairs
Kin selectiona mechanism for increasing the frequency of one's genes in a population by helping increase the reproductive success of relatives
K selectionwhen N≅k, this type of selection favors better quality offspring
Lemuriformeslemurs: ringtails, indri, aye aye
Linguistic anthropologystudy of how people use language to relate to each other and how they develop and transmit culture
Locusthe specific site of a particular gene on its chromosome
Lorisasia, slow climbing, overlapping territories (solitary), defense behavior=omit bad smell, roll into spikey ball
LorisiformesLorises, Pottos, Galagos
Lumbar curvealso secondary or acquired – develops as a result of the child being able to stand + begin to walk. Most pronounced of the curves.
Macroevolutionevolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groups
Madagascaran island in the Indian Ocean off the southeastern coast of Africa
Mary Anningcredited with discovering marine dinosaurs; lived in England
Matt Cartmill"visual predation hypothesis", that primate traits derive from an ancestral adaptation to feeding on insects at night, with a need for improved vision
Meiosisprocess by which the number of chromosomes per cell is cut in half through the separation of homologous chromosomes in a diploid cell
Mendel's Lawlaws of dominance,segregation,and independent assortment
Microevolutionevolution resulting from small specific genetic changes that can lead to a new subspecies
Mitochondriathe organelles in which nutrients are converted to energy
Mitosiscell division in which the nucleus divides into nuclei containing the same number of chromosomes
Modern Synthesisa comprehensive theory of evolution that incorporates genetics and includes most of Darwin's ideas, focusing on populations as the fundamental units of evolution.
Molecular AnthropologyA branch of biological anthropology that uses genetic and biochemical techniques to test hypotheses about human evolution, adaptation, and variation.
Morphologyscientific study of the forms and structures of plants and animals
Mutationchange in a DNA sequence that affects genetic information
Natal Groupthe group or community an animal has inhabited since birth.
Natural Selectionprocess by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Negative assortative matingoccurs when phenotypically dissimilar individuals mate preferentially
New world monkeyslocated in the Americas, 2133 dental structure, includes Spider, Howler, Capuchin, Squirrel Monkeys, Tamarins, and Marmosets
Nicolaus CopernicusPolish astronomer who produced a workable model of the solar system with the sun in the center (1473-1543)
Nocturnalof or relating to or occurring in the night
Nodesstrategic points and foci for travel
Non-random matingmating between individuals of the same phenotype or by those who live nearby
NucleotidesBasic units of DNA molecule, composed of a sugar, a phosphate, and one of 4 DNA bases
Old World monkeyslocated in asia and africa, 2123 dental structure, non-gripping tails, include Baboons, Mandrills, Macaques, and Colobus monkeys.
Omnivorousfeeding on both plants and animals
OrangutanAn arboreal anthropoid ape (Pongo pygmaeus) of Borneo and Sumatra, having a shaggy reddish-brown coat, very long arms, and no tail.
Osteologythe study of bones
Paleoanthropologythe scientific study of human fossils
Phenetic ClassificationClassification based only on similarity of phenotype
Pheneticsclassification based on degree of overall similarity between individuals
Phenotypephysical characteristics of an organism
Phenotypic ratioa ratio that shows the varied outcomes that results from a genetic cross and is based on physical appearance alone
Phylogenetic Classificationreflecting evolutionary relationships. Darwin was the first to suggest that any classification of life should be "genealogical"and would naturally be hierarchical; now we call this "phylogenetic"
Phylogenetic treediagram showing evolutionary relationships of organisms with a common ancestor; resembles a tree
PhylogenyThe study of evolutionary relationships among organisms
Plesiomorphictrait shared by different groups of biological organisms derived from common ancestor; primitive
Point Mutationmutation in which one or just a few nucleotides in a gene are changed
Polyandrya polygamous mating system involving one female and many males
Polygynya polygamous mating system involving one male and many females
Pongidaegreat apes; orangs: arboreal; gorilla and pan: knuckle walkers
Population bottleneckUsually brought on by disaster which leaves only small chance survivors with the allele alive.
Positive assortative matingoccurs when individuals with similar phenotypes mate preferentially
Postcranialeverything below skull
Power gripa fist-like grip in which the fingers and thumbs wrap around an object
Polygentic traitsto be controlled by two or more genes
Precision gripprecise grip in which the tips of the fingers and thumbs come together, enabling fine manipulaiton
Prehensileadapted for grasping especially by wrapping around an object
Primate orderthe order through which humans descended from primates
PrimatologyThe study of biology and behavior of nonhuman primates
Prosimiithe suborder of primates that are biologically primitive compared to anthropoids
Quadrupedan animal especially a mammal having four limbs specialized for walking
Recessive traitsappear less often in their offspring
Regulatory geneA gene that codes for a protein, such as a repressor, that controls the transcription of another gene or group of genes.
Rhinariumthe naked surface around the nostrils, typically wet in animals (primates do not have it)
R selectionhave as many offspring as possible as fast as possible (fish, insects)
Selective PressuresForces in the environment that influence reproductive success in individuals
Sexual dimorphismDifferences in physical characteristics between males and females of the same species. For example, humans are slightly dimorphic for body size, with males being taller, on average, than females of the same population.
Sexual selectionnatural selection for mating success
Siamanglarge black gibbon of Sumatra having the 2nd and 3rd toes partially united by a web
Speciationformation of new species
Stabilizing selectionintermediate forms are favored and extreme forms are eliminated
Stereoscopic visioncombination of two retinal images to give a 3-D perceptual experience
Stratigraphystudy of remains found in layers of soil and rock
Strepsirhini(wet nose) primate taxonomy that includes lemurs and lorises, without tarsiers
Structural Genegene en coding the amino acid sequence of a protein. Non-regulatory gene.
Sympatricdifferent species sharing the same habitat
SynapomorphiesA trait that certain groups of organisms have that exists in no others.
Taphonomythe study of what happens between death and fossilization
Thomas Huxley(1825-1895) English biologist, famous for his defense of Darwinism in his public debate with Archbishop Samuel Wilberforce. Coined the term "agnosticism".
Thomas Malthusan English economist who argued that increases in population would outgrow increases in the means of subsistence (1766-1834)
UniformitarianismCharles Lyell's idea that geologic processes have not changed throughout Earth's history.
Vitalismthe theory that the activities of living organisms are controlled by a vital force

Set Information

Terms 207
Creator KyleMatthewLabeaune
Created October 22, 2009
Groups None
Subject Physical Anthropology
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