Fruit is developed from which of the following?

If any part of the flower other than the ovary is involved in the formation of the fruit,it is called a false fruit. Which of the following parts can be involved in such formation?

Seeds are adaptively important because:
$1.$ they maintain dormancy
$2.$ they protect young plants during vulnerable stages
$3.$ they store food for young plants,and facilitate dispersal

The ....... is a scar on the seed coat through which the developing seeds were attached to the fruit.

Seeds of Orchis are

Explain the structure and types of seeds.