Animal Kingdom

1: (c) Ear, 2: (b) Two auricles and one ventricle, 3: (d) Cobra, 4: (a) Digestive system, 5: (b) Hollow bones, 6: (c) Base of tail, 7: (d) Pigeon, 8: (b) Four chambers in heart, 9: (a) Dog, 10: (c) Lion