terminologies Flashcards
have the smallest number of character change, have the least evolutionary step
parsimony
it is an organism shared by 2 or more descendant lineage
ancestor
is a group of organism at any hierarchical rank such as family, genus, or species
collection of one or more group of species
taxon
shows where the branches or lineages diverge
represents speciation event
node
straight line that connects everything that represents period of time between generation
branch
the base of the tree, it represents the most common ancestor of all the taxa represented on the tree
root
a taxa that shares a common ancestor , branching off from the same node
closely related to each other than the other taxa
sister taxa
an evolutionary group that includes an ancestor and all of its descendants
clade
any group outside of this clade, or taxa that diverged earlier than the taxa w/in the clade
outgroup
a lineage that evolved early from the root and remained unbranched
basal taxon
a clade, species, or lineage that appears at the tip of phylogenetic tree
also called “leaves”
terminal taxa
are branched that end with a tip most recent diversion
external branch
do not end with the tip, most ancient diversion
internal branch
a method for testing how good a dataset fits a evolutionary model
bootstrapping analysis
considered statistically significant in bootstrapping analysis
90-100