Lorraine is studying the effects of polluted rain. A common kind of polluted rain has acid in it. She has some samples of a kind of rock called limestone. She runs pure water over one sample. She pours water with acid in it over the second sample. After a while, the second sample begins to break apart, but the first sample does not. What does Lorraine's experiment show?

that acid rain can dissolve limestone faster than regular rain

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.

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.