In monoecious plants like castor and maize:

Maturation of male and female sex organs at different times in a flower is called

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

Give scientific reasons: Outbreeding devices increase fertility.

Given below are two statements:
Statement $I$: In heteromorphic flowers,pollen grains produced from anther pollinate stigmas produced at same level.
Statement $II$: In Tobacco,the germination of pollen on the stigma of the same flower is inhibited.
In the light of above statements,select the correct option given below:

In which of the following are both autogamy and geitonogamy prevented?