The different levels within the hierarchical classification system - the higher ranks contain more organisms with less similarity between them, while the lower ranks contain fewer organisms with more similarity between them
The four kingdoms that fall under the domain Eukarya, representing the eukaryotes
The binomial for a species is always typed in italics or underlined when handwritten. The genus should always begin with a capital letter, and the species with a lower case letter.
The taxonomic classification system within the three domains
Characteristics & Features of the Three Domains Table