Explanation:
Hormones are the body's chemical messengers. They carry information and instructions from one set of cells to another.
Excretory product:- Excretion is the physiological process of elimination of metabolic waste from the body. The excretory products include amino acids, urea, uric acid, carbon dioxide, water, and ammonia.
Glandular secretion:- The main function of glandular epithelium is to produce and release different secretary products, such as sweat, saliva, breast milk, digestive enzymes, and hormones, among other substances.