Magnetic potential energy is dependent on
a.
the position of magnetic objects relative to one another.
b.
the shape and size of a magnet.
c.
the distance a magnet has moved from its resting position.
d.
the mass of a magnet and how fast the magnet is moving.

C: plants and animals

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

No because it not possibly