The opening and closing of the stoma are regulated by? by Sunday | Sep 9 | Biology JAMB | 0 comments A. transpiration B. respiration C. diffusion D. osmosis Correct Answer: Option D – osmosis Users Also Read These:If the opening stock is Le200, cost of goods sold…Opening creditors was N65,000, closing creditors was…If the opening stock of Ali ltd is N40,000, cost of…In the preparation of statement of profit, if the…Maintenance of osmotic balance in body cells of…