Yes, but using foodstuff as a plural does not follow its stricter definition.
Pantry or larder.
Victuals is a word that means foodstuffs. One sentence using the word could be "He sat down with a plate of victuals and a mug of ale." The word is considered archaic today.
Bones
Could be Grocer, a dealer in foodstuffs and household supplies
Foodstuffs was created in 1922.
The bacteria on unwashed hands will contaminate any foodstuffs they touch.
There are several ways to preserve foodstuffs, within a household. The most common way to preserve foodstuffs is to freeze or refrigerate them.
Flour
spices, foodstuffs, silk, and timber
I'm not sure that there is such a word. It would be more likely to be 'able to be stored' or in speaking of foodstuffs it would be 'imperishable' .
Urine does not belong in the given list as it is a waste product excreted by the kidneys, while bones, smooth muscle, and foodstuffs are all related to the human body's structure or nutrition.
Cocoa is extracted from cocoa beans found mainly in Brazil. The substance is used to make chocolate and is found in other foodstuffs.