Tegmen develops from

In angiosperms, the seeds are enclosed by the presence of .....

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

Which of the following develops into a seed after fertilization?

Select the incorrect option regarding albuminous seeds.

The fruits and seeds which are either sticky or have different types of outgrowths are capable of undergoing: