'Because there are no blood vessels in this layer of skin, nutrition is supplied by a tissue fluid'
the epidermis
BIOLOGY: Because there are no blood vessels in this layer of skin, nutrition is supplied by a tissue fluid
Because there are no blood vessels in this layer of skin, nutrition is supplied by a tissue fluid
Because there are no blood vessels in this layer of skin, nutrition is supplied by a tissue fluid
BIOLOGY
the epidermis
BIOLOGY