69. Pollen is produced by the process of A.Mitosis B.Pollination C.Meiosis D.Fertilization
Answer: Option B Solution: The lungs are surrounded by two membranes, the pleurae. The outer pleura is attached to the chest wall and is known as the parietal pleura; the inner one is attached to the lung and other visceral tissues and is known as the visceral pleura. So, the correct answer is option C.
