A. Lithium and cadmium are in the mixture. Strontium is not in the mixture. B. Lithium and strontium are in the mixture. Cadmium is not in the mixture. C. Cadmium and strontium are in the mixture. Lithium is not in the mixture. D. All of the shown elements are present in the mixture

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

1.75 is the weight of one medium egg