Which is true of magnetic field lines, but not electric field lines? A. They never cross.

B. They always form complete loops.

C. They are not affected by their own source.

D. They are stronger near the source, and get weaker farther away.

um if your asking how to beat a level then that i can with that and how to fix your wii but other than that i can't u

answer: the correct answer for the fill in the blank is rods.

rods are the specialized photoreceptor cells that are present in the retina of human eye. they are responsible for vision in the night time ( also called scotopic vision). they have very low visual acuity and color distinguishing ability.

as they are responsible for vision in night time, therefore they are found predominantly in the nocturnal animals.