The term 'Plant Openings' refers to two different structures found in plants. STOMATA (7 letters) are small openings on the surface of a plant's leaves, stems, and other organs that allow for gas exchange between the plant and its environment. Stomas (6 letters) are larger openings on the surface of a plant's roots that allow for the absorption of water and minerals from the soil. Both STOMATA and stomas are essential for the survival of plants.