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ANTH 215 Paul James Test #2
ANTH 215 Paul James Test #2
83
Anthropology
Undergraduate 1
05/04/2010

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Term
classification
Definition
in biology, the ordering of organisms into categories, such as orders, families, and genera, to show evolutionary relationships.
Term
chordata
Definition
the phylum of the animal kingdom that includes vertebrates.
Term
vertebrates
Definition
animals with segmented, bony spinal columns; includes fishes, amphibians, reptiles, birds and mammals.
Term
homologies
Definition
similarities between organisms based on descent from a common ancestor
Term
analogies
Definition
similarities between organisms based strictly on common function, with no assumed common evolutionary descent.
Term
analogies
Definition
similarities between organisms based strictly on common function, with no assumed common evolutionary descent.
Term
homoplasy
Definition
(homo meaning same and plasy meaning growth) The separate evolutionary development of similar characteristics
Term
evolutionary systematics
Definition
a traditional approach to classification (and evolutionary interpretation) in which presumed ancestors and descendants are traced in time by analysis of homologous characters.
Term
cladistics
Definition
an approach to classification that attempts to make rigorous evolutionary interpretations based solely on analysis of certain types of homologos characters (those considered to be derived characters).
Term
ancestral (primitive)
Definition
referring to characers inherited by a group of organisms from a remote ancestor and thus not diagnostic of groups (lineages) that diverged after the character first appeared.
Term
clade
Definition
a group of organisms sharing a common ancestor. the group includes the common ancestor and all descendants.
Term
derived (modified)
Definition
referring to characters that are modified from the ancestral condition and thus are diagnostic of particular evolutionary lineages.
Term
theropods
Definition
small to medium sized ground-living dinosaurs, dated to approximately 150 mya and thought to be related to birds.
Term
shared derived
Definition
relating to specific character traits shared in common between two life-forms and considered the most useful for making evolutionary interpretations.
Term
phylogenetic tree
Definition
a chart showing evolutionary relationships as determined by evolutionary systematics. it contains a time component and implies ancestor-descendant relationships.
Term
cladogram
Definition
a chart showing evolutionary relationships as determined by cladistic analysis. it's based solely on interpretation of shared derived characters. it contains no time component and does not imply ancestor-descendant relationships.
Term
biological species concept
Definition
a depiction of species as groups of individuals capable of fertile interbreeding but reproductively isolated from other such groups.
Term
speciation
Definition
the process by which a new species evolves from an earlier species. speciation is the most basic process in macroevolution.
Term
recognition species concept
Definition
a depiction of species in which the key aspect is the ability of individuals to identify member of their own species for purposes of mating (and to avoid mating with members of other species). in theory, this type of selective mating is a component of a species concept emphasizing mating and is therefore compatible with the biological species concept.
Term
ecological species concept
Definition
the concept that a species is a group of organisms exploiting a single niche. this view emphasizes the role of natural selection in separating species from one another.
Term
ecological niche
Definition
the position of a species within it's physical and biological environment. ecological niches make up an ecosystem.
Term
phylogenic species concept
Definition
splitting many populations into separate species based on an identifiable parental pattern of ancestry.
Term
sexual dimorphism
Definition
differences in physical characteristics between males and females of the same species.
Term
intraspecific
Definition
within species, variation within the same species.
Term
interspecific
Definition
between species; variation between species
Term
paleospecies
Definition
species defined from fossil evidence, often covering a long time span.
Term
geological time scale
Definition
the organization of earth history into eras, periods, and epochs.
Term
continental drift
Definition
the movement of continents on sliding plates of teh earth's surface. causes large land masses to move and change drastically.
Term
epochs
Definition
subdivisions of periods. ie within the cenezoic era epochs include the paleocene, eocene, oligocene, miocene etc.
Term
placental
Definition
a type (subclass) of mammal. became widespread in the cenezoic.
Term
heterodont
Definition
having different kinds of teeth; characteristic of mammals.
Term
endothermic
Definition
internal heat, regulate own body temperature
Term
adaptive radiation
Definition
the relatively rapid expansion and diversification of life-forms into new ecological niches.
Term
punctuated equilibrium
Definition
the concept that evolutionary change proceeds through long periods of stasis punctuated by rapid periods of change.
Term
prosimians
Definition
member of a suborder of primates; suborder prosimii. ex. lemurs, lorises and tarsiers(new evidence challenges this classification)
Term
anthropoids
Definition
member of a suborder of primates; suborder anthropoidea ex. monkeys,apes,humans
Term
specialized
Definition
evolved for a particular function
Term
primatologists
Definition
scientists who study the evolution, anatomy and behavior of nonhuman primates.
Term
prehensility
Definition
grasping, as by the hands and feet of primates.
Term
omnivorous
Definition
having a diet of many kinds of foods including plants, meat and insects.
Term
diurnal
Definition
active during the day
Term
nocturnal
Definition
active during the night.
Term
stereoscopic vision
Definition
the condition whereby visual images are, to varying degrees, superimposed on one another. causes depth perception (3 dimensional)
Term
binocular vision
Definition
vision characterized by overlapping visual fields provided for by forward-facing eyes. essential for depth perception.
Term
hemispheres
Definition
two halves of the cerebrum that are connected by a dense mass of fibers.
Term
neocortex
Definition
the more recently evolved portions of teh brain's cortex that are involved with higher mental functions and composed of areas that integrate incoming information from different sensory modalities.
Term
sensory modalities
Definition
different forms of sensation. 5 senses.
Term
arboreal
Definition
tree-living
Term
adaptive niche
Definition
the entire way of life of an organism.
Term
midline
Definition
an anatomical term referring to a hypothetical line that divides the boy into right and left halves.
Term
adaptive niche
Definition
the entire way of life of an organism.
Term
midline
Definition
the anatomical term referring to a hypothetical line that divides the body into right and left halves
Term
cusps
Definition
the elevated portions (bumps) on the chewing surfaces of premolar and molar teeth.
Term
morphology
Definition
the form of anatomical structures; can also refer to the entire organism.
Term
macaques
Definition
a group of old world monkeys comprising of several species. ex. rhesus monkeys. most found in india, other parts of asia and nearby islands.
Term
coding DNA sequences
Definition
DNA sequences that code for the production of a detectable protein product.
Term
noncoding DNA sequences
Definition
DNA sequences that do not code for identifiable proteins but in many cases influence the actions of coding sequences.
Term
rhinarium
Definition
the moist hairless pad at teh end of noses seen in most mammals. enhances smell.
Term
callitrichidae
Definition
one family of new world monkeys. ex marmosets and tamarins
Term
cebidae
Definition
one family of new world monkeys. (all except marmosets and tamarins)
Term
cercopithecidae
Definition
taxonomic family of all old world monkeys
Term
cercopithecines
Definition
the subfamily of old world monkeys that includes the african colobus monkeys and asian langurs.
Term
ischial callosities
Definition
patches of tough, hard skin on the bottocks of old world monkeys and chimpanzees.
Term
estrus
Definition
period of sexual receptivity in female mammals (except humans), correlated with ovulation.
Term
frugivorous
Definition
having a diet composed primarily of fruits.
Term
natal group
Definition
the group in which animals are born and raised.
Term
natal group
Definition
the group in which animals are born and raised.
Term
behavioral ecology
Definition
the study of the evolution of behavior, emphasizing the role of ecological factors as agents of natural selection. behavioral patterns increase sexual fitness.
Term
plasticity
Definition
the capacity to change; the ability to modify behaviors in response to differing circumstances. ie. indulging in sexual behaviors, getting pregnant and choosing to have an abortion.
Term
matrilines
Definition
groups that consist of a female, her daughters, and their offspring.
Term
life history traits
Definition
characteristics and developmental stages that influence reproductive rates. ex. age at sexual maturity, length of time between births.
Term
dominance hierarchies
Definition
systems of social organization wherein individuals within a group are ranked relative to one another.
Term
autonomic
Definition
pertaining to physiological responses not under voluntary control.
Term
affiliative
Definition
pertaining to amicable associations between individuals ie. grooming
Term
territories
Definition
portions of an individual's or group's home range that are actively defended against intrusion.
Term
core area
Definition
the portion of a home range containing the highest concentration and most reliable supplies of food and water.
Term
altruism
Definition
behavior that benefits another individual but at some potential risk or cost to oneself.
Term
conspecifics
Definition
member of the same species.
Term
reproductive strategies
Definition
the complex of behavioral patterns that contributes to individual reproductive success. aren't always deliberate and different between males and females.
Term
k-selected
Definition
individuals produce few offspring and put a lot of resources into their growth.
Term
r-selected
Definition
individuals have numerous offspring with little parental care.
Term
polyandry
Definition
a mating system wherein a female associates with more than one male with whom she mates.
Term
anthropocentric
Definition
viewing nonhuman animals in terms of human motives, experience and capabilities.
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