Robert decided to go for a run when he gets home from schooll. As he begins running, his breathing rate starts to increase. what are the mechanisms that cause his breathing rate to increase.

Which of the following options describes photosynthesis correctly? question 8 options: a plant uses carbon dioxide and water to make oxygen and nitrogen a plant breaks down sugar to make carbon dioxide. a plant uses sunlight, carbon dioxide, and water to make sugar and oxygen. a plant uses sunlight to break down sugars for digestion into water and oxygen.