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1_______. It includes not only the muscles and fat but also the tendons and ligaments. 2_______.
Containing all the amino acids necessary for human body, meat is valued as a complete protein food. The fat of meat, which varies widely with the species, quality, and cut, is a valuable source of energy. 3_______. Parts such as livers, kidneys, hearts, and other portions are excellent sources of vitamins and of essential minerals. 4_______.