the field of medicine , researchers have recently designed a technique that allows them to use adult stem cells to test the potency and safety of newly designed drugs for humans . What is the most likely advantage of this new technology compared with other forms of drug trials?

Which plate boundary causes plates to collide forming mountain ranges, volcanoes, and island arcs? give an example of this type of plate boundary. 2. at which plate boundary do rifts and mid-oceans ridges form? give an example of this type of plate boundary. 3. at which plate boundary do plates slide past each other while moving in opposite directions? give an example of this type of boundary.