How many molecules of pyruvic acid are made from a single molecule of glucose

19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%