What are the adoption of characteristics of aquatic plants?

The adoption characteristics of hydrophytes are;

1. Their root system is poorly developed.

2. Their conducting tissues are poorly developed.

3. Floating plants have aerenchymatous tissues which provide buoyancy to make them easy to float.

4. They are covered with waxy layer which prevents water from entering them .

the answer to this predicament is false, by friend, i had this on a quiz, and i got it wrong, so i learned it, cos i was gonna have it on a test, and i got it right