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Reactants are the molecules that begin cellular respiration, in this case that would be oxygen<span> and </span>glucose<span>. Hope this helps. </span>
The fossils that provide information on the formation of an oxygen-rich atmosphere are the stromatilites from the Precambrian era. These are layered and columnar fossils consisting mainly of cyanobacteria which were the original life form back then. These bacteria took in carbon dioxide and produced oxygen by photosynthesis as early as 2.5 billion years ago (the earth is about 4.5 billion yrs old).
I think 1,2,and 5 not sure if thats the answer never did this question
Pepsi actually contains more sugar than Coke, which clocks in at 39 grams of sugar. This Pepsi offshoot contains 160 calories and 42 grams of sugar. Orange soda generally contains a lot more sugar than regular cola; Orange Fanta contains 160 calories and 44 grams of sugar per can
