What is a fruit called if it develops without fertilization?

Provide the appropriate terms for the following analogies:
$(i)$ In Gymnosperms,Zygote : Embryo :: Ovule : ...
$(ii)$ In Angiosperms,Ovule : Seed :: Ovary : ...

Which of the following is a true fruit?

Which of the following is a non-endospermic monocot seed?

In hydrochory,small fruits and seeds are carried over the surface of water through:

The $Tegmen$ is known as the.......