| 1. | Arm of man and flipper of whale |
| 2. | Thorn of Bougainvillaea and tendril of cucurbita |
| 3. | Eye of an octopus and eye of a mammal |
| 4. | Brain of frog and man |
| 1. | Rudimentary ear muscles and third molars (wisdom teeth), body hair |
| 2. | Coccygeal tail, vertebrae and scalp muscles |
| 3. | Vermiform appendix and nictitating membrane of the eye |
| 4. | Ear pinna, patella, olecranon process |