Petroleum, and carbon. It's an organic thing and has the sources provided.
A stem cell is a cell that has layers of bacteria that helps protect the water that follows through it.
The organelle which labelled A is C. golgi apparatus
Your sense of taste could indicate that there is something wrong with your car or your health. Tate, gastatory perception, or gustation is one of the five traditional senses that belongs to the gustatory system. Taste is the sensation produced when a substance in the mouth reacts chemically with taste receptor cells located on taste buds in the oral cavity, mostly on the tongue.
