Final answer:
Not all points fused in Panum's area appear in the same location in visual space; there can be slight variations, so the answer is D) No, sometimes. Panum's area allows for binocular single vision with slight differences in depth perception.
Step-by-step explanation:
The question relates to Panum's area, which is a concept in the field of binocular vision within Biology. The correct answer to whether all points fused in Panum's area appear in the same location in visual space is D) No, sometimes. Panum's area is the area around the horopter (the region in space where the two eyes' visual fields overlap) where binocular single vision is possible. Within this area, slight differences in the image seen by each eye (binocular disparity) are fused into a single perception. However, not all points within Panum's area are seen as occupying the exact same location in visual space; there can be slight variations in perceived depth. This is part of the normal binocular vision process and allows for the sensation of depth and three-dimensionality.