Class Agnatha: Jawless Fishes Lamprey and Hagfish Gills single loop, 2 chambers Unpaired fins, muscles External Fertilization Ectotherms Slimy/mucus-y.
EVERYTHING YOU ALWAYS WANTED TO KNOW ABOUT:. WHAT MAIN CHARACTERISTIC IS SHARED BY ALL VERTEBRATES?
Chapter 39 Fish Section 2 Jawless and Cartilaginous Fish.
Animal Kingdom - Vertebrates Mr. Cobb Biology. 1 Zoology: study of animals.
