1. Chordate Characteristics Characteristics of Chordates A chordate is an animal that in some stage of development has: 1. Notochord- dorsal rod of specialized.
Fishes Chapter 39 Introduction to Vertebrates Section 39.1.
Fishes. Classification of Fishes Three classes of vertebrates: Agnatha; Chondrichthyes; and Osteichthyes Fishes are the most numerous of all vertebrates.
Fishes
Class Agnatha 80 species of hagfishes and lampreys Skin lacks scales and plates
Chordates and Fish. Characteristics of Chordates A chordate is an animal that in some stage of development has: 1. Notochord- dorsal rod of specialized.
FISH. I. Characteristics of Fish A. Fish are over 1/2 the vertebrates on Earth.
