1. Which of the following is the correct level of structural organization from most simple to complex? a. Chemical, tissue, organ system, cellular, organism, organ
b. Chemical, cellular, tissue, organ, organ system, organism
c. Organism, organ system, organ, tissue, cellular, chemical
d. Tissue, chemical, cellular, organ, organ system, organism

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

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.