For example, a palm tree could be drawn in the shape of a hand, a bat tree with bat leaves. Students are only limited by their imaginations. The wilder the better. Biological classifications indicate how organisms are related. Organisms are classified into a hierarchy of groups and subgroups based on their similarities and reflecting these evolutionary relationships.
Species are the fundamental unit of classification.
The binomial system of naming organisms was developed by the Swedish naturalist Carolus Linnaeus in the mid 18th century. The polynomial system, that was then in use, consisted of several Latin, Greek or pseudo forms of these languages that were descriptive of the organism. For example, common catnip was Nepteta floribus interrupte spicatus pedunculatis. The honey bee was Apis pubescens thorace subgriseo abdomen fusco pedipus posticus glabris utrinque margine ciliatis. This cumbersome system was replaced by Linnaeus' binomial system consisting of just two words.