| A | B |
| Anterior | The top or front end of an organism's body, or at or towards the front |
| Posterior | the behind or end or an organism, or at or towards the rear. |
| Dorsal | The top or back of an organism, or on or towards the back |
| Ventral | The bottom or an organism, or on or at the bottom |
| Lateral | The sides of the organism |
| Basal | The bottom of an elongated structure or towards the base. |
| Distal | Towards or at the tip farthest away from the base |
| Bilateral Symmetry | An organism when if cut in half will have equal halves. Like a mirror image. |
| Radial Symmetry | An organism whose body plan is built upon a circle. |
| Exterior | Outside the body |
| Interior | Inside the body |
| Human | Example of bilateral symmetry |
| Starfish | Example of radial symmetry |
| Vertebrate | Animal with a backbone |
| Invertebrate | Animal without a backbone |