The opening of the guard cells of the epidermis in plants is by the process of? by Sunday | Nov 21 | Biology WAEC | 0 comments A. osmosis B. diffusion C. active transport D. transpiration Correct Answer: Option A A. osmosis Users Also Read These:The process of meiosis in plants ensures the…Explain the main uses of the following circular saw…In vascular plants, the sieve tubes and companion…In which of the plant tissues are guard cells located?The epidermis of the mammalian skin is an example of…