What advantage does cross pollination have over self-pollination? It assures that there is genetic variety within each plant species.
It allows a plant to have both male and female flowers.
It allows a plant to fertilize itself.
It ensures that all offspring will be identical.

It assures that there is genetic variety within each plant species.

Explanation:

When a plant does self-pollination it has only it's own genetic pool.

because the light is a great source of energy for the plants to survive. (i hope this )

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