Platyhelminthes
In Binomial Nomenclature, organisms are classified into a hierarchical system consisting of Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species. The order of these groups from broadest to most specific is Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.
It depends what type of warm you are referring to. Flatworms belong Platyhelminthes Tubeworms belong to Nematodes and Segmented worms belong to Annelids Centipedes and Millipedes are not worms. They belong to the Arthropod Phylum.
chordata
Every organism is divided up by kingdom, then further divided by phylum, then class, then order, then family, then genies, then species.
Kingdom-Animalia Phylum-Chordata Class--Mammalia Order--Primata Family--Hominidae (I'm pretty sure) Genus--Pan Species--paniscus or troglodyte, depending on which species you're asking about
Chordata. All cats belong to Chordata, so if you're ever wondering which phylum a cat belongs to, just remember. Cats are mammals, and every mammal is in the phylum chordata.
sea urchins are species which belongs to phylum echinordermata, class ecinoidia. Normally every echinodermates has water vascular system. And sea urchin, yes it is. It has water vascular system.
Contrary to just about every answer I've seen, they are all out dated, a new level was added recently, Domain. The levels now proceed as Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
incomplete= cniderians and platyhelminthes complete = every other metazoan. e.g. nematoda, mammals, etc
'Scorpion' is an Order in itself - every family, genus and species within it are collectively known as 'scorpions'. Kingdom - Animalia Phylum - Arthropoda Class - Arachnida Order - Scorpiones
In the simplest form of taxonomic hierarchy, the taxa are ordered as follows:KingdomPhylumClassOrderFamilyGenusSpeciesHowever, this is not the full version. The complete list of taxa is:DomainKingdomSuperphylum/SuperdivisionPhylum/DivisionSubphylum/SubdivisionInfraphylum/InfradivisionSuperclassClassSubclassInfraclassSuperorderOrderSuborderInfraorderSuperfamilyFamilySubfamilyInfrafamilySupertribeTribeSubtribeInfratribeGenusSpeciesSubspecies/VarietyBreed/Subvariety*Please note that not all advanced taxa are used for every organism.
Taxonomy is used to classify organisms into catagories based on similar features. they are put into eight catagories, listed from broadest to most specific: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species. Every organism is given two names, binomial nomenclature, the Genus name, and the species name.