What's it called when the body mistakes its own cells or tissues for intruders?

Describe the flow of blood represented by the diagram. include the following terms: nutrients, artery, capillaries, vein. ( me)

How much do the tanakas spend on health insurance premiums each year

Achemical substance that people of any age may not lawfully manufacture, possess, buy, or sell is known as a(n) a. over the counter drug b. prescription drug c. medicine d. illegal drug