A Shortage of Dopamine. Parkinson's disease occurs when nerve cells, or neurons, in an area of the brain that controls movement become impaired and/or die. Normally, these neurons produce an important brain chemical known as dopamine, but when the neurons die or become impaired, they produce less dopamine.arkinson's disease occurs when nerve cells, or neurons, in an area of the brain that controls movement become impaired and/or die. Normally, these neurons produce an important brain chemical known as dopamine, but when the neurons die or become impaired, they produce less dopamine.
Weight density is not a term. Weight is the effect of gravity on a Mass and will be less on the Moon since the moon has less mass and therefore less gravity than the Earth.Density is mass/volume and since mass is constant, density would also be constant.aking the world better, one answer at a time. Weight density is not a term. Weight is the effect of gravity on a Mass and will be less on the Moon since the moon has less mass and therefore less gravity than the Earth. Density is mass/volume and since mass is constant, density would also be constant.
The mass of a body is a measure of how much matter it contains. Yes, mass is the same everywhere. Weight on the other hand depends on the gravity where the object is located. An object that weighs 100 pounds on Earth would weigh 16.6 pounds on the Moon Yes, mass is the same.our weight would change since the moon has a different gravitational acceleration than earth. We = (m) (ge) Wm = (m) (gm) _________________________________________________________________________________________________ The mass is the samethe Moon has about 1/6th the gravity on earth.