NEET BIOLOGY

Detailed explanation-1: -A modern human-one species of mammal-is a familiar example of a chordate. However, we share this phylum with two groups of invertebrates as well. Tunicates (subphylum Urochordata) and lancelets (subphylum Cephalochordata) are the only invertebrate groups within the phylum Chordata.

Detailed explanation-2: -chordate, any member of the phylum Chordata, which includes the vertebrates (subphylum Vertebrata), the most highly evolved animals, as well as two other subphyla-the tunicates (subphylum Tunicata) and cephalochordates (subphylum Cephalochordata).

Detailed explanation-3: -The prevailing view holds that the phylum Chordata consists of three subphyla: Urochordata (Tunicata), Cephalochordata and Vertebrata (figure 1a). All three groups are characterized by possession of a notochord, a dorsal, hollow neural tube (nerve cord), branchial slits, an endostyle, myotomes and a postanal tail.

Detailed explanation-4: -Chordata (biology definition): a phylum of the animal kingdom comprising all the animals that have, at some stage in their life, a notochord (a hollow dorsal nerve cord), pharyngeal slits, and a muscular tail extending past the anus.

Detailed explanation-5: -Phylum – Chordata – Division In Vertebrata: Cyclostomata, Pisces, Chondrichthyes, Osteichthyes, Amphibia, Amphibia, Reptilia, Aves, Mammalia.