The arrangement of organisms into groups of organism of organism (e.g. At what level of diversity should a single species be split in to two or more species?).
Consideration of how evolution resulted in the formation these groups.
A group or category of related organisms.
Two key characteristics of taxa are:
Members of lower level taxa (e.g.
each other than are members of higher level domain).
Member of specific taxa are more similar to
are to members of different specific taxa
taxa (eg.Kingdom or
each other than any found at the same
are more similar to apes, than either is similar to,
example, Escherichia individuals are member
coli). Thus of the same
once you taxon, you
know that two can inter certain
similarities between the two organisms. NOTE that taxa are dynamic, changing as our organism and evolutionary relationships change
Organisms are named using binomial nomenclature ( viruses are exceptions)
Binomial nomenclature employs the names of the two level taxa, genus and species, to name a specie. Binomial nomenclature includes: