| Answer | Crossword Clue |
|---|---|
| PITAS | Double-layer breads |
| PLY | Two- -- (double-layer) |
| membrane | A microscopic double layer of lipids and proteins that bounds cells and organelles and forms structures within cells |
| membranes | A microscopic double layer of lipids and proteins that bounds cells and organelles and forms structures within cells |
| pericardia | The membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane |
| pericardium | The membrane enclosing the heart, consisting of an outer fibrous layer and an inner double layer of serous membrane |
