Speciation . Group of answer choices

1. must begin with the geographic isolation of a small, frontier population
2. occurs at such a slow pace that no one has ever observed the emergence
3. of new species occurs only by the accumulation of small genetic changes over
4. vast expanses of time can involve changes to a single gene

geologic time scale (for gradpoint) =)

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.