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Embryos of different species look very similar, which shows that the organisms share a ancestor.

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?