I would say the best answer would be Fatty tissue because the epidermis is the outer layer of skin and the dermis is under this epidermis but it is the connective tissue. Let me know if that's right then.
~Keaura/Cendall
Answer:
From what I remember in my 9th grade biology class, it's usually half that amount.
I know carbon dioxide is, I don’t think oxygen and water vapour are. I don’t know the others, sorry