How does a dichotomous key identify unknown you identify unknown specimens based on their traits?

A dichotomous key helps us classify organisms using their physical characteristics by dividing the organisms in to groups. For example, organisms with 6 legs, organisms with 8 legs and organisms with more than 8 legs are all grouped into different categories. These categories may further be divided into more categories; for example, the on the basis of the organisms' mode of respiration or on the basis of the organisms' body structures.
The groupings help in identification, separation and classification of organisms.

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.