_____ STRUCTURE- a structure that is similar because of evolution in response to similar selection pressures resulting in convergent evolution, not similar because of descent from a common ancestor
the highest level category in the classification system and that includes all taxonomic classifications below it; it is
the most inclusive taxon
an allopatric speciation that occurs when something in the environment separates organisms of the same species into separate groups
the most specific category of classification
GENETIC ____- the effect of chance on a population’s gene pool
the variety of alleles in a population
a group of taxa with the same set of shared derived characters, including an ancestral species and all its descendants
_____ GENETICS- the study of how selective forces change the allele frequencies in a population over time
GENE ____- The flow of alleles in and out of a population due to the migration of individuals or gametes
___ TREE- diagram used to reflect the evolutionary relationships between organisms or groups of organisms
_____ EFFECT- the magnification of genetic drift as a result of natural events or catastrophes
GENE ____- all of the alleles carried by all of the individuals in the population
____ STRUCTURE- a physical structure present in an organism but that has no apparent function and appears to be from a functional structure in a distant ancestor
a heritable trait or behavior in an organism that aids in its survival in its present environment
______ RADIATION- a speciation when one species radiates out to form several other species
_____ SELECTION- the greater relative survival and reproduction of individuals in a population that have favorable
heritable traits, leading to evolutionary change
Down
SISTER ____- two lineages that diverged from the same branch point
a formation of a new species
the category in the taxonomic classification system that falls within family and includes species; the first part of the scientific name
SHARED ____ CHARACTER- a character on a phylogenetic tree that is shared only by a certain clade of organisms
SHARED _____ CHARACTER- a character on a phylogenetic branch that is shared by a particular clade
_____ STRUCTURE- a structure that is similar because of descent from a common ancestor
the science of determining the evolutionary relationships of organisms
_____ EVOLUTION- an evolution that results in similar forms on different species
an allopatric speciation that occurs when a few members of a species move to a new geographical area
_____ SPECIATION- a speciation that occurs in the same geographic space
____ SPECIATION- a speciation that occurs via a geographic separation
_____ EVOLUTION- an evolution that results in different forms in two species with a common ancestor
the science of classifying organisms
a single level in the taxonomic classification system
_____ EFFECT- a magnification of genetic drift in a small population that migrates away from a large parent population carrying with it an unrepresentative set of alleles
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