Aristotle based his classification system off of observations of animals, and used physical characteristics to divide animals into two groups
An embolus <span>occurs when a clot breaks free from an artery wall and travels through the circulatory system until it lodges in a small artery and suddenly shuts off blood flow to the tissues.</span>
<span>The structure responsible for the storage of the bile is the gallbladder. It's a small hollow organ inside the abdomen. It's pear shaped and it's connected to the liver via the common hepatic duct. The bile is important because it helps digestion. Specially the digestion of fats</span>
Id hav to go with A,reason i say that is, synthetic is man made..so it could b altered at anytime
