[DOC] [TLE] Phylum Chordata [PAR] The phylum Chordata contains all animals that possess, at some point during 
their ... 43,700 species, most of them concentrated in the subphylum Vertebrata, 
making it the ... The phylum Chordata is divided into three subphylums: 
Urochordata ... fish, cartilaginous fish, bony fish, amphibians, reptiles, birds, and 
mammals. [DOC] [TLE] Vertebrate - Wikipedia [PAR] Vertebrates /vrtbrts/ comprise all species of animals within the 
subphylum Vertebrata /-/ (chordates with backbones). Vertebrates represent 
the overwhelming majority of the phylum Chordata, with currently about 64,000 
species described. Vertebrates include the jawless fish and the jawed 
vertebrates, which ... Vertebrates make up less than five percent of all described 
animal species;... [DOC] [TLE] Chordate - Wikipedia [PAR] Chordates are animals possessing a notochord, a hollow dorsal nerve cord, 
pharyngeal slits, ... Of the more than 65,000 living species of chordates, about 
half are bony fish of ... and include two species that are regarded as fish, which 
implies that they are .... The invertebrate chordate classes are from Fishes of the 
World. [DOC] [TLE] 95.05.08: The Animal Kingdom [PAR] In order for scientist to discover and study animals they must be classified into a 
group ... (2) phylum or division, (3) class, (4) order, (5) family, (6) genus, and (7) 
species. ... For example, amphibians, reptiles, and birds belong to the phylum 
Chordata. ... Mollusks make up the largest group of water animals even though 
some... [DOC] [TLE] Classification of Living Things: Classes of Vertebrates [PAR] The subphylum Vertebrata click this icon to hear the preceding term pronounced 
... The 7 living classes of vertebrates are distinguished mostly on the basis of ... 
They start life with gills, like fish, and later develop lungs to breathe air. .... 
Despite their success, mammals still only make up about .4% of known animal 
species. [DOC] [TLE] Classification of Living Things: Kingdom to Subphylum [PAR] Whether they are single- or multiple-celled and whether they absorb, ingest, ... (
animals), sponges, worms, insects, fish, amphibians, reptiles, birds, and 
mammals ... The distinction between the plant and animal kingdoms is based 
primarily on .... to just over 1500 species in the other two invertebrate subphyla of 
chordates. [DOC] [TLE] Vertebrate - New World Encyclopedia [PAR] Aug 1, 2012 ... Fish (including lampreys), amphibians, reptiles, birds, and mammals (including ... 
However, more than 95 percent of described animal species are .... Vertebrates (
subphylum Vertebrata) are part of the phylum Chordata, ... Traditionally, seven 
classes of extant (living) vertebrates are recognized, three of fish... [DOC] [TLE] Aves facts, information, pictures | Encyclopedia.com articles about ... [PAR] How are they different from animals in the other major classes of organisms? ... 
Birds make up the class Aves of the subphylum Vertebrata, phylum Chordata. ... 
While the majority of the world's bird species are known to science, a handful of ... 
The three highest classes of vertebratesreptiles, birds, and mammalshave... [DOC] [TLE] Chordata: Subphylum Vertebrata - Infoplease [PAR] Vertebrates constitute the vast majority of living chordates, and they have evolved 
... The meagerness of the skeleton is considered a degenerate, not a primitive 
condition. The larva of the marine lamprey is a small animal, resembling a 
lancelet, that uses ... In marine species, on the other hand, it is necessary to 
prevent the... [DOC] [TLE] Invertebrate - New World Encyclopedia [PAR] Apr 19, 2014 ... The group includes about 97 percent of all animal species; that is, all ... 
Vertebrates include the familiar fish, reptiles, amphibians, birds, and mammals. ... 
the three subphyla in Phylum Chordata are invertebrates: Urochordata .... They 
range in size from microscopic plankton up to forms several meters long. [DOC] [TLE] ADW: Mammalia: INFORMATION - Animal Diversity Web [PAR] Other characteristics found in most mammals include: a lower jaw made up of a ... 
To make these easier to comprehend within the accounts of lower

Question: Classed as a subphylum of the chordates, they make up about 3 percent of animal species, including mammals
Answer: vertebrates