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
The organ that produces and secretes enzymes that are essential for  proper digestion is the pancreas. The enzymes that the pancreas  produces and secretes are trypsinogen, â¦ , chymotrypsinogen,  pancreatic lipase and amylase. 2 people found this useful.