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Draw the structure of water. Is water considered polar or nonpolar? Why?

Polar

Explanation:

Water is consider polar because the dipole moments move in a direction in which there is a side of the molecule that is more negative than the other.  The oxygen pulls electrons from the hydrogen, making it more electronegative.  The dipole moments don't cancel out because the molecule is at an angle.

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