The National Science Foundationâs âTree of Lifeâ project estimates that there could be anywhere from 5 million to 100 million species on the planet, but science has only identified about 2 million.
If it were not for the stomachâs storage capacity, we would have to eat constantly instead of just a few times each day. The stomach also secretes a mixture of acid, mucus, and digestive enzymes that helps to digest and sanitize our food while it is being stored....
Its primary job is to produce enzymes required  for the digestion and absorption of food. â¦ Enzymes secreted include  lipases that digest fat, proteases which digest  proteins, and amylases which digest starch molecules.9 people found this useful.ts primary job is to produce enzymes required  for the digestion and absorption of food. â¦ Enzymes secreted include  lipases that digest fat, proteases which digest  proteins, and amylases which digest starch molecules. 9 people found this useful.