If a material does not allow charges to move through it easily, what is it called? Group of answer choices

electric charge

electric conductor

electric force

electric insulator

Engineers have contribute to society in many ways like making the technology we use today or any type of power energy material

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