Which of the following is true for polar jet streams?
A. They bring cool air
B. They bring warm air
C. They blow at the equator
D. They blow from the North to South

geologic time scale (for gradpoint) =)

sorry, is there a picture? i do not see any arrows.

wut? unius0123 wut?

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.