The Moon illusion is an optical illusion which causes the Moon to appear larger near the horizon than it does higher up in the sky. It has been known since ancient times and recorded by various cultures. The explanation of this illusion is still debated.
The Liver is a chemical factory is secretes an enormous number of chemicals. We need you to be more specific to be able to help you with a particular liver secretion. Edit
There are two types of exocrine secretions produced by the pancreas. Acinar cells produce digestive enzymes: amylase, lipase, and peptidases.ancreatic Secretion. There are two types of exocrine secretions produced by the pancreas. Acinar cells produce digestive enzymes: amylase, lipase, and peptidases. Pancreatic peptidases are produced as inactive zymogens that are only activated after they reach the duodenum (see webpage on Zymogens).