In Minecraft creative, you can just get them from your creative inventory by typing in 'seeds'. Same with every other item!
Yes, it is under "Materials" in the Creative Mode inventory.
Flint and steel are in the "Tools" section of the Creative inventory.
Go to the creative inventory and search for emerald ore.
A bottle'o'enchanting is only available in Creative where you will find it in the inventory.
It's only attainable via Creative Mode or inventory hacks.
It is impossible to get flint and steel in creative mode on Pocket Editions unless you have a mod.
In Creative mode you have everything in your inventory,search by clicking the compass tab at the top-right
You cannot harvest plants in creative mode because you have all the resources in your creative inventory! So when you harvest a plant, it just breaks.
You could get toomanyitems mod if you want it in survival or now in 1.8 you can go in creative mode.
Yes, it will appear in the creative mode inventory, along with every other block and item (except fireworks and spawners).
There is no button to spawn eggs in minecraft, unless you are in creative mode in which case you press the Inventory button. Creative mode can be made to happen when you create a creative world or install a mod that lets you switch gamemodes ingame.