Question

List the adaptive features of water pollinated plants like vallisneria

Answer 1

For water pollinated plants,
The pollen grains should be produced in large quantities.
In some plants pollen grains have a specific gravity almost equal to that of water so that they remain floating below the surface of the water.
In some special cases male flowers are such that they float on the surface of water till they meet female flower.  

Answer 2

Answer:

Explanation:

1)The pollen grains should be produced in large quantities.

2)The frmale flower reaches the surface of watet.

It's enough for 2 marks question.