Organisms are grouped by

Answer 1

their shared characteristics, such as physical appearance, behavior, or genetic composition. These groupings are known as taxa, and the most common system of taxa is based on the Linnaean classification system. In this system, organisms are grouped into increasingly specific categories, starting with the broadest category, domain, and ending with the most specific category, species. Other commonly used taxa include kingdom, phylum, class, order, family, and genus. Each level of classification represents a group of organisms that share certain characteristics with each other, with species being the most specific group that contains individuals that are capable of interbreeding and producing viable offspring.