The answers are "<span>gravitational, electric, and magnetic fields." When too electrons rub against each other that creates a electric field. Electrons often stick together which causes a gravitational, and sometimes magnetic fields.  
Hope this helps!</span>
        
             
        
        
        
Gina's weight would increase or decrease, while her mass remains the same.
 
        
                    
             
        
        
        
In the first stages of Alzheimer’s disease, the patient
affected may experience symptoms, such as memory loss of certain events. As the
time passes, the patient may experience long-term memory loses, the patient may
also revert into being a child. Patients who has been diagnose with Alzheimer’s
Disease are commonly diagnosis with pneumonia, which may lead to their death. 
 
        
             
        
        
        
Answer:
The correct answer would be His mitochondria lack the transport protein that moves pyruvate across the outer mitochondrial membrane. 
In cellular respiration, glycolysis takes place in the cytoplasm of the cell and converts glucose into 2 molecules of pyruvate. Pyruvate is then transported into the mitochondria for further oxidation.
It is transported into the mitochondria with the help of transport protein pyruvate translocase where it is decorboxylated to produce acetyl-CoA. This acetyl-CoA then enters the Krebs cycle to produce ATP (adenosine triphosphate) with the help of oxidative phosphorylation, electron transport chain and chemiosmosis.
In absence of this transport protein, the cell can not completely oxidize the glucose or carbohydrate. It switches to the metabolism of fats and amino acids in order to meet the energy demands of the cell. 
 
        
             
        
        
        
The neurotransmitter that may have been affected is the
dopamine as this is the one responsible for the motor control in regards of the
individual’s voluntary movements and that causes Jan to engage of trembling and
twitching because her dopamine has been affected.