| A | B |
|---|
| Asymmetrical | Cannot be divided into mirror images. |
| Radial Symmetry | A body plan in which all body parts of an organism are arranged around a central point. |
| Bilateral Symmetry | A body plan in which an organism can be divided along only one plane of its body to produce two mirror images. |
| Monotreme | A mammal that lays eggs. |
| Marsupial | A mammal in which the female has a pouch where offspring develop after birth. |
| Placental Mammal | A mammal whose young develops within the mother. |
| Gymnosperm | A seed that does not produce flowers. |
| Angiosperm | A seed that produces flowers. |
