When the pollen grains are not transferred from anthers to the stigma in a flower due to a physical barrier or fence,or when some natural barrier exists between the androecium and gynoecium to check self-pollination,it is known as:

In some plants,the style is shorter,while in others,it is longer than the stamens. This condition is called:

Given below are two statements.
Statement $I$: Self-incompatibility is a device that prevents outbreeding.
Statement $II$: Self-incompatibility is a genetic mechanism due to which germination of pollen on the stigma of the same flower is inhibited.
In the light of the above two statements,choose the correct answer from the options given below.

What is the outbreeding device,where the stamens and carpels mature at different times called?

The phenomenon in which anther and stigma grow and mature at the same time is called:

Self-pollination results in: