More in Patient Rights. Drugs work in your body in a variety of ways. They can interfere with microorganisms (germs) that invade your body, destroy abnormal cells that cause cancer, replace deficient substances (such as hormones or vitamins), or change the way that cells work in your body.
Pangaea begins to break up. Pangaea (sometimes spelled Pangea), the most recent of a series of supercontinents on Earth, formed about 270 million years ago and broke apart about 200 million years ago. At this time most of the dry land on Earth was joined into one huge landmass that covered nearly a third of the planet's surface.
There is strong evidence that most of the Earth's continents have been periodically joined together into supercontinents as the movement of the plates brought them together. The most recent of these supercontinents, Pangaea, formed about 270 million years ago and broke up about 200 million years ago.The geologic record provides evidence of older supercontinents than Pangaea and a so-called supercontinent cycle of periodic supercontinent formation and break-up.What ultimately drives the cycle is a subject of scientific debate.here is strong evidence that most of the Earth's continents have been periodically joined together into supercontinents as the movement of the plates brought them together. The most recent of these supercontinents, Pangaea, formed about 270 million years ago and broke up about 200 million years ago.