Carbon Dioxide in necessary for photosynthesis as shown by the equation:
6CO2+ 6H2O---> C6H12O6+ 6O2 (aka) CO2+Water= Glucose and Oxygen
Therefore your answer will be either a plant or any eukaryote or prokaryote that performs photosynthesis. Some of these examples can be algae, ferns, or cyanobacteria. Any an organism which is a consumer (primary, secondary, or beyond) performs cellular respiration and instead releases CO2.
Hope this helps! :)
