The light reactions produce ATP and NADPH thet the Calvin cycle uses to convert CO2 into carbohydrate. The light reactions in the thylakoid membranes of the chloroplast, and the reactions of the Calvin cycle take place in the stroma
The lynx population would increase. This is because the lynxes eat the snowshoe hares, and if there aren't a lot of lynxes, they would mate more and in turn increase the population. Hope this helps!