Question

the floating roots are the characteristic feature of

Answer 1

1. Thin cuticle.

2. Stomata open most of time (as water is abundant).

3. Increased # of stomata.

4. Plants in water have less structure (water pressure supports them).

5. Large flat leaves on surface plants for flotation.

6. Air sacs for flotation.

7. Reduction in roots (H2O can diffuse directly into leaves).

8. Roots of of water plants are feathery to hold up plant.

9. Roots modified to pick up oxygen.  

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Answer 2

Answer:

answer is jussiaea.

reason:

Floating roots develop from the nodes of floating aquatic plants like Jussiaea (Ludwigia).

They store air, become inflated and spongy, project above the level of water, make the plant light and function as floats.

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