Hierarchy of biological classification

classification is systematic arrangement of organisms into groups based on their shared characteristics

has 8 ranks or levels

higher levels are larger and broader, they group living things that have just some things in common

lower levels are smaller and more specific, they group living things that have more things in common

The eight ranks, starting from the broadest to the most specific, are: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species

domain has 3 domains, multicellular organisms eukaraya, single celled bacteria and archea (the extremophiles)

kingdom has 4 kingdoms, animal, plant, protista, fungi

phylum has more than 12 plyla in animal

kingdom and 10 in plant kingdom.

class each phylummis divided into class.

order is a subcategory of a class

families are smaller groups within orders

genus are species that share certsin characteristics sommay be closely related, they are grouped in same genus

species is a group of living things that can breed to produce fertile offspring

binomial or scientif namr - genus and species are used as a binomial or scientific name to refer to an organism. they are written in italic font.