Which isotope would be used in a pharmaceutical or drug to treat the thyroid with radiation therapy?

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

In general, are there any major differences that you can see? explain

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.