<span>Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.
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Eukaryotes have nucleus and protaryotes have plant calls that’s the difference
I'm going to go with A. This is because the population of frogs is definitely decreasing, as they are loosing food. Also, the frogs are prey for the snakes, and if there are no frogs for the snakes to eat, the population of snakes can go down, too.
Hope this helps!