The cellular components of this tissue are obviously different from the meristematoid top part. At the more central part of the potato, the cells contain large, round inclusions, a product of great importance i.e. the starch or the amylum. Not all cells are able to make this product. Compare this image with that of meristematoid tissue. These are apparently differentiated cells.
Animals are mobile living forms.
They have the shortest life history on Earth, but the cellular complexities and developments we find in animals have surpassed all previously achieved accomplishments in any other kind of life forms on Earth. The dark areas are the lymphoid follicles. In this section of mouse spleen, we see blood forming cells differentiating from less differentiated stem cells. Try to find the mitotically proliferating cells shown here. At the centre there is a vein, the central vena of the lobe.