Crystal structure............... .........
When you breath in you breath in oxygen, which comes from plants, when you breath out, you breath out carbon dioxide, which is what plants breath.
op level consumer in a food chain or food web that has the least number
Answer:
Photosynthesis
Explanation:
In photosynthesis, carbon reduction helps make glucose, the oxygen is formed with the reduction of water in the photosystems 2 and 1.
In cellular respiration, both of these compounds would be reactants.