Transpiration is regulated by the movements of a. Parenchyma cells
b. Guard cells
c. Epithelial cells
d. None of the above

b. Guard cells

B

Explanation:

Because transpiration is the evaporation of water from plants and guard cells also stress tolerance

mechanism in plants.

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.

not: both offer magnification to the atomic level.