What is Fruit

So essentially, a fruit is a plants ovary. The ovary wall or pericarp is what forms the skin of the fruit.

is a part of a flowing plant that derives from specific tissues of the flower, mainly one or more ovaries

result from the maturing of a flower.

Inside the ovary/ovaries are one or more ovules where the megagametophyte contains the mega gamete or egg cell.  After double fertalisation, these ovules will become seeds.

Have a couple of good readings on this. Ill bring one in tomorrow