| A | B |
|---|
| embryo | the earliest stage of development of plants and animals after an egg has been fertilized |
| amnion | a membrane that surrounds a developing embryo |
| amniotic egg | egg that provides a complete environment for the developing embryo with a yolk sac for nutrition, protective internal membranes and fluid, and a protective outer shell |
| Jacobson's organ | the sense organ in the roof of the snake’s mouth |
| plastron | ventral part of a turtle’s shell |
| carapace | dorsal part of a turtle’s shell |
| squamata | Latin for “to bear scales” |
| Jacobson's organs | sense organs in the roof of the snake's mouth |
