What type of reaction is shown below:
2mg + o2 > 2mgo

This type of reaction is called a synthesis reaction. It is when two or more reactants combine to form one new complex product. The reactants are magnesium  (Mg) and oxygen (O₂). The product in the reaction is magnesium oxide (MgO).

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later