Even though sound waves in water and sound waves in air are basically similar, the way that sound levels in water and sound levels in air are reported is very different, and comparing sound levels in water and air must be done carefully.
Melanocytes are found in the stratum basale layer. About 1 in every 5 to 10 cells in this layer is a melanocyte. Melanocyte number is the same in all races. In different races, the number of melanocytes is THE SAME. In light skinned people, the melanin is concentrated deep in the epidermis, particularly in the stratum basale layer. Differences in skin colour depend on how much melanin is produced, the size of the melanosomes, and the degree to which they agregate.
The deeper layer of the epidermis contains the pigment producing (melanogenesis) cells, melanocytes. These produce the dark brown pigment in the epidermis, eumelanin. The melanocyte forms part of the epidermal unit in a ratio of 1:36 keratinocytes.he upper most outer layer of the skin, the epidermis, consists of squamous cells (flat and scale-like in shape) and underneath basal cells (round shaped).