| Answer | Crossword Clue |
|---|---|
| invertebrate | an animal lacking a spinal column |
| invertebrates | INVERTEBRATE, an animal lacking a spinal column |
| vertebrates | An animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes |
| vertebrate | An animal of a large group distinguished by the possession of a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fishes |
| extension | The application of traction to a fractured or dislocated limb or to an injured or diseased spinal column to restore it to its normal position |
| zoophoric | bearing or supporting the figure of an animal; as, a zoophoric column |
