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:A radio is operated by eight cells each of e.m.f.…Explain the main uses of the following circular saw…The epidermis of the mammalian skin is an example of…In vascular plants, the sieve tubes and companion…The process of meiosis in plants ensures the…