There are fewer of them
Red blood cells have NO nuclei. White blood cells have them.
White blood cells are larger
White blood cells live a lot longer. Months rather than days.
The correct answer is C
the photoreceptor is represented by the rods and cones, the receptor neurone is the bipolar neurone in the retina, in the brain the multipolar neuron in the retina synapses with a neuron in the geniculate nucleus that sends impulses through the third cranial nerve