The atmospheric concentration of carbon dioxide has
varied over the past 400 000 years. For most of this time,
there was no industrial activity. Why, then, do we think
that the present increase in atmospheric carbon dioxide is
due to human activities?

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.