Question

Most species of plants produce flowers containing both stamen and pistils. Why is producing both male and female reproductive structures and advantage for plants?

Answer 1

By producing both male and female reproductive structure plant becomes independent of the process called pollination and a pollinator.
They can perform self pollination.

Answer 2

So that they do not depend on pollinator for pollination

Explanation:

• Most species of plants have both stamen which is the male reproductive part of flower and pistil which is the female reproductive part of flower.  
• The advantage of producing both male and female reproductive structures in a single flower allows the plant to self pollinate through air. So by doing self-pollination, they are not dependent on pollinators like bees for pollination.
• It is also advantageous in the case where there is no member of the same plant species is present near the plant.

Learn more about self pollination:

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