Aerating openings formed in the bark through which exchange of gases takes place and water is lost in the form of vapours are___________? August 9, 2021May 23, 2018 by admin Aerating openings formed in the bark through which exchange of gases takes place and water is lost in the form of vapours are___________? A. Hydathods B. Stomata C. Lenticels D. None of these