| A. asymmetrical |
1. any plane
passing through the central axis of the body divides the organism into
two identical halves |
| B. radial symmetry |
2. any plane that passes through the central axis does not
divide into equal halves |
| C. bilateral symmetry |
3. the body can be divided into identical left and right
halves in only one plane |
|
|
4. the body can be divided into identical top and bottom
halves in only one plane |
