The phenomenon where seeds germinate while the fruit is still attached to the parent plant is called .....

An example of compensated Zoochory is

The seed of $Lupinus \text{ } arcticus$ excavated from Arctic Tundra, germinated and flowered after an estimated record of dormancy of how many years (in $years$)?

The megasporangium transforms into a/an ...... .

Perisperm is

The tegmen of a seed develops from the.......