Family divisions, also known as GENERA, are the highest level of classification in biological taxonomy. GENERA are used to group species that share similar characteristics and are closely related. GENERA are typically divided into subgenera, sections, and series. GENERA are usually named after a type of organism, such as a plant or animal, or a geographic location. GENERA are often used to identify and classify organisms, and they are also used to help scientists understand the evolutionary relationships between different species.