What organism? If its plants, they give oxygen during the day and carbon dioxide in the night. While animals give carbon dioxide but take oxygen from the air. These carbon dioxide gas and oxygen gas go to the atmosphere and affect the carbon cycle and oxygen cycle.
Here is the cycle if you want to know more
Plants (give out oxygen) -> Animals (Use oxygen) + (given our carbon dioxide) -> plants (take oxygen)
and so on
Symbiotic Relationship.
Hope this helps.
Absolutely! The Calvin Cycle is a process that takes place within the stroma of chloroplasts during photosynthesis. This cycle is a light-independent reaction because it does not need sunlight to fully develop. The process is, however, dependent on ATP and NADHP from those light reactions.
If you want a really good study guide for the Calvin Cycle, just follow this link; it helps A LOT!
https://www.khanacademy.org/science/biology/photosynthesis-in-plants/the-calvin-cycle-reactions/a/calvin-cycle
Hope this helps!! :)