When iron levels in the body are high, dietary iron absorption is decreased by the hormone which acts at the surface of enterocytes to decrease iron transport.

What type of disease causing organism is so small you must use a microscope to see it? a) carryon b) pathogen c) protozoa d) vices

In multiple sclerosis, the immune system destroys the substance that coats and protects nerve fibers in the brain and spinal cord. this causes inflammation and injury to the nerves, and the axons don't conduct impulses as well.

Microbes in the gut ferment fiber and complex carbohydrates and form vitamins, short chain fatty acids and