A rollback does a couple of things: 1  Most importantly, a rollback reverts a question (or answer) back to a previous version in the edit history. The rollback action itself then appears as the most recent item in the edit history. 2  A rollback clears any offensive flags that have been set on a question.
In each of these whorls are one of four organs, including petals, sepals, stamens, and pistils. Petals and sepals do not play an active role in the reproductive process. Stamens and pistils, the flower's male and female reproductive organs, do aid in reproduction.
Flowers are important in making seeds. Flowers can be made up of different parts, but there are some parts that are basic equipment. The main flower parts are the male part called the stamen and the female part called the pistil. The stamen has two parts: anthers and filaments