Which of the following is a flap of tissue in the heart that prevents blood from flowing backwards?
atrium
pacemaker
septum
valve

Hello, i would like someone to respond to this slogan .slogans 1. compare the two ways of representing the results of an investigation: through graphs and through tables. which form is easier to elaborate and interpret? which would be most appropriate to make comparisons between results of multiple variables? justify and exemplify your answers. 2. why should so much importance be attached to the formal part of the presentation of the results of an investigation? are not substantive issues much more important?

Adebate between dietitian and nutritionist the difference between certification and licensing within these two professions

List three reasons people may begin using tobacco