Guess me: I may come in groups of twelve, From farms or from a store, The thing that made me, Made many of me galore!

Question

I may come in groups of twelve,
From farms or from a store,
The thing that made me,
Made many of me galore!

I could give birth to a creature,
Or be eaten by you,
For breakfast, lunch, or dinner,
Now here's your last clue.

I have walls and floors of white
A disco ball in the middle,
A very round one that's yellow,
And I am very little.

What am I?

Answer 1

Answer is EGG.
EGG has the white shell outside and the yellow part inside.
It can either be eaten or can give birth to a creature.