Answer to Question 1
Taming a wild animal involves changing a wild animal's behavior such that it becomes significantly more docile. Domestication requires breeding in captivity and selection such that the animal becomes something more useful to man.
Answer to Question 2
The most cultivated wheats in the world include:
1 . Bread or common wheat
2 . Durum or macaroni what
3 . Eikorn
4 . Emmer
5 . Spelt