Keratinocytes produce keratin, a fibrous protein that helps provide structure to your skin, hair, and nails. The stratum lucidum is a separate layer only in the thicker epidermis on the palms of ...

“It is a good example that shows the plant’s simple structure with no roots or leaves.” Unearthed from stratum from the Silurian Period near Prague, the fossil is comprised of a furcate stem ...

The stratum corneum is very thin, with little keratin ... Just as significant as evolution of jaws to the evolution of vertebrates Structure of egg Reptiles - large amount of yolk and small amount of ...