18. Which type of permanent tissue helps the aquatic plants to float? A.Aerenchyma B.Collenchyma C.Sclerenchyma D.No option is correct
Answer: Option A Solution: The tissue which allows aquatic plants to float is Aerenchyma. Basically aerenchyma is parenchyma tissue in aquatic plants. The cells of aerenchyma make a network which has wide air spaces or air cavities for gaseous exchange. These air cavities make the plant light and buoyant and hence, plants can float easily in water.
