Stomatal pores are guarded by _____.
The stomatal pore is guarded by two kidney shaped guard cells. Name the epidermal cells surrounding the guard cells. How does a guard cell differ from an epidermal cell? Use a diagram to illustrate your answer.
The opening and closing of the stomatal pores depends upon : (a) oxygen (b) water in guard cells (c) temperature (d) concentration of CO2 in stomata