Answer: The correct answer is Enzymes.
Process of digestion involves the breakdown of large complex molecules ( like carbohydrates, and proteins) present in the food into smaller soluble molecules ( like glucose and amino acids) that can be absorbed by bloodstream and transported to various body organs.
Protein in the stomach is broken down into amino acids with the help of enzyme called as pepsin ( a protease). It is an endo-peptidase that is produced in the stomach and helps in the digestion of proteins at acidic pH of the stomach ( 1.5 to 2).
Photosynthesis.. hope I helped (:
Answer:
The source of blood carried to capillaries in the myocardium would be the coronary arteries - C.