How are mixtures and solutions different? Unlike a solution, a mixture can easily be separated and each ingredient keeps its physical properties.

Unlike a solution, a mixture has density and will always sink in a liquid because mixtures lack buoyancy.

Unlike a solution, a mixture can dissolve completely in a liquid because the properties of the ingredients change.

Unlike a solution, a mixture is unable to change states of matter from a solid to a liquid or gas.

Your answer should be the first option.

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