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.
Antony was furious and employed the punishment known as 'decimation' on those who had lost their nerve. What he did was divide the whole lot of them into groups of ten, and then he killed one from each group, who was chosen by lot; the rest, on his orders were given barley rations instead of wheat. Decimation was still being practised during the time of the Roman Empire, although it was very uncommon.