Question

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Answer 1

1 : roots are the plants are the part of plant which exists at its lower end

Answer 2

Explanation:

1.Roots are not required for the absorption of water or nutrients. Ø The entire plant surface can absorb water and minerals.

2.In fully submerged plants, the leaves will generally be thin and divided for the purpose of creating a large surface area for the direct absorption of nutrients, gases such as CO2 for photosynthesis and water for survival.

3.the waxy coating on leaves gives an added layer of security to the plants and makes the stem and leaves more resistant. Floating plants don't have very strong stems, and thus the waxy coating solidifies them and helps them stay in their positions.

4 .The air filled in these cavities adds to the buoyancy of the plant and secondly facilitate the exchange of gases during respiration and photosynthesis.