Answer:
Organ
Explanation:
Aggregation of cells results in tissue formation. Aggregation of Tissues results in the formation of Organs.
Enzymes are produced in organs of the body such as the Pancreas, Stomach, Mouth which are all associated with the the food digestive aspect of the body.
The enzymes produced are used in speeding up biochemical processes and in the enhanced and efficient breakdown of substances in the body.
