It is a single layer of cube-shaped cells. New epidermal skin cells, called keratinocytes, are formed in this layer through cell division to replace those shed continuously from the upper layers of the epidermis. This regenerative process is called skin cell renewal. As we age, the rate of cell renewal decreases.
Primates - marmosets, monkeys, apes, lemurs, humans. There are about 233 species in this order. Primates range in size from the tiny pygmy marmoset that weighs less than 3 ounces to the large mountain gorilla that weighs close to 400 pounds.Most species of primates are found in subtropical or tropical forests and many species live in trees. Primates have five fingers on their hand and five toes on their feet.
Types OF Monkeys. Pygmy marmoset is the smallest monkey among all monkey species in the world. The average head and body length is as short as 12 cm and their maximum tail length of 20 cm, sometimes they are not more than the length of average human finger. With these small measurements of body these mammals weights is not more than 199 grams.