Bisexual Flower - Hibiscus

The correct answer is option 'B', Hibiscus.

Explanation:

Bisexual flowers, also known as perfect flowers, are flowers that have both male and female reproductive organs. These organs include the stamen (male organ) and the pistil (female organ). The stamen produces pollen, while the pistil contains the ovary where the ovules are located.

Now let's discuss why the Hibiscus flower is bisexual.

1. Hibiscus flower structure:
The Hibiscus flower has a typical bisexual flower structure, containing both male and female reproductive organs. It consists of a central, tubular structure known as the pistil, which is the female reproductive part, and a ring of stamens surrounding the pistil, which are the male reproductive parts.

2. Pistil:
The pistil of the Hibiscus flower is located in the center of the flower. It consists of three parts: the stigma, style, and ovary. The stigma is the sticky surface at the top of the pistil that receives pollen. The style is the elongated tube that connects the stigma to the ovary. The ovary is the swollen base of the pistil where the ovules are contained.

3. Stamens:
The stamens of the Hibiscus flower are arranged in a ring around the pistil. Each stamen consists of a filament and an anther. The anther is the part of the stamen that produces pollen, which is necessary for fertilization.

4. Pollination:
In bisexual flowers like the Hibiscus, pollination can occur in two ways: self-pollination and cross-pollination. Self-pollination happens when the pollen from the anther of a flower lands on the stigma of the same flower or a flower on the same plant. Cross-pollination occurs when the pollen is transferred from the anther of one flower to the stigma of another flower on a different plant.

Conclusion:
The Hibiscus flower is bisexual because it contains both male (stamens) and female (pistil) reproductive organs. This allows for self-pollination or cross-pollination, ensuring the fertilization and production of seeds.