Answer: I think true but I don't know I am guessing
Explanation:
It adds volume to the painting and makes it look 3D, without it the painting would look flat and cartoony.
The answer would be, "Characteristics, practices, and customs that are passed down through family, clans, gender groups, or larger cultural groups."
The first one is more of a genetic thing, while the third one shows family heirlooms or such.
Hope this helps! :)