Question

how is an aquatic plant like water hyacinth able to float on water surface ​

Answer 1

Answer:

Air-filled tissues in various parts of the plant provide the buoyancy that allows them to float. ... A similar but invisible air-filled tissue is found in the swollen leaf stalks of the water hyacinth, Eichhornia crassipes. It floats freely on the water and bears attractive clusters of blue-violet flowers.

Explanation:

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Answer 2

Answer:

In many aquatic plants, parenchyma cells have large air cavities which allow the plant to float in water. Such, parenchyma cells are called as aerenchyma.