Three of the vertebrate classes are fish. The most primitive of these is Agnatha click this icon to hear the preceding term pronounced . It consists of jawless fish that do not have scales. These are the lampreys and hagfish. read more
Classes of Vertebrates The subphylum Vertebrata includes all of the familiar large animals and some rare and unusual ones as well. The 7 living classes of vertebrates are distinguished mostly on the basis of their skeletal system, general environmental adaptation, and reproductive system. read more
Class es of Vertebrates. The subphylum Vertebrata includes all of the familiar large animals and some rare and unusual ones as well. The 7 living classes of vertebrates are distinguished mostly on the basis of their skeletal system, general environmental adaptation, and reproductive system. read more
Start studying 7 classes of vertebrates. Learn vocabulary, terms, and more with flashcards, games, and other study tools. read more
Class es of Vertebrates The subphylum Vertebrata includes all of the familiar large animals and some rare and unusual ones as well. The 7 living classes of vertebrates are distinguished mostly on the basis of their skeletal system, general environmental adaptation, and reproductive system. read more