In binomial nomenclature of organisms, every species name includes two words. The first word is the name of the . A monophyletic group or clade consists of a single and all of its descendants.
Cladograms sometimes indicate , or shared characteristics. All species have that characteristic from the indicated point forward.
Respond to the following based on your reading.

What's our system of naming organisms called, and what are the two most specific categories of organization?
If a scientist is studying the evolutionary relationship between two species of birds, what tool could she use to help her chart their relationship?
How is one clade differentiated from another clade?
Which type of character provides useful data for cladistic analysis?
What technological development allowed for a more detailed understanding of the relationship between species?