What are the 3 lines for evidence for the earths relative age

I'm not exactly sure what you meant but i think you could figure out the earth's relative age with the seasonal rings and layers, earth and solar system from  radiometric dating and galaxies age from travel time of light. Hope this helped you!!

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