Class Agnatha: Jawless Fishes Lamprey and Hagfish Gills single loop, 2 chambers Unpaired fins, muscles External Fertilization Ectotherms Slimy/mucus-y.
Marine Reptiles and Birds. Class Reptilia Characteristics Strong bony skeleton Well developed lungs Most have 2 pairs of legs Legs are thick Toes with.
Taxonom y a.k.a. Classification. Why do we classify things? We like things organized To have precise names of organisms Common names are too confusing.
