1. By: Tricia Redburn

2. External Anatomy  Lateral Line  Anterior Dorsal Fin  Posterior Dorsal Fin  Caudal fin  Rostrum  Eyes  Spiracle  Gill Slits  Pectoral Fins  Pelvic Fins  Mouth  Nostrils  Ampullae of Lorenzini  Cloacal opening  Myomers

3. Body Cavities  pericardial  Pleuroperitoneal  Thoracic  Pericardial  Pleural  abdominal

4. Internal Anatomy  Liver  Duodenum  Ilium  Rectum  Rectal gland  Spleen  Pyloric stomach  Cardiac stomach  Esophagus  Bile Duct 

5. DogFish Classification  Kingdom- Animalia Phylum- Chordata SubPhylum- Vertebrata Class- Chondrichthyes Subclass- Plagiostomi Superorder- Selachimorpha Subclass- Elasmobranchii  Sharks are divided into 8 orders- Squaliforms- (short snout, mouth underneath, no anal fin) - dogfish and cookiecutter sharks 

6. I got my information from these sites:  http://www.enchantedlearning.com/ subjects/sharks/classification/ http://www.enchantedlearning.com/ subjects/sharks/classification/  http://www.zoology.ubc.ca/~millen/ oldvertebrate/lab3_frameset.htm http://www.zoology.ubc.ca/~millen/ oldvertebrate/lab3_frameset.htm  https://www.pc.maricopa.edu/Biolo gy/ppepe/BIO145/lab04_1.html https://www.pc.maricopa.edu/Biolo gy/ppepe/BIO145/lab04_1.html