See how to use a CO 2 and O 2 Gas Sensor to measure the concentrations of gas during cell respiration of peas. This lab is suitable for AP biology as well as general biology.he. Gas Sensor measures gaseous carbon dioxide in two rangesâ 0 to 10,000 ppm and 0 to 100,000 ppm.
usage: The extended sense of decimate, âto destroy a great number or proportion of,â developed in the 19th century. Because the etymological sense of one-tenth remains to some extent, decimate is not ordinarily used with figures: Drought has destroyed (not decimated) 80 percent of the herd.
ignis fatuus. igÂ·nis fatÂ·uÂ·us. noun. pl. igâ²nes fatâ²uiÂ·. a light seen at night moving over swamps or marshy places, believed to be caused by the combustion of gases arising from decaying organic matter: popularly called will-o'-the-wisp. a deceptive hope, goal, or influence; delusion.