Final answer:
The carbon dioxide level did not affect the amount of oxygen produced in photosynthesis lab gizmo.
Step-by-step explanation:
In the photosynthesis lab gizmo, the carbon dioxide level did not affect the amount of oxygen produced. This is because carbon dioxide is one of the reactants in photosynthesis and is needed for oxygen production. The variables that did affect the amount of oxygen produced were light intensity, temperature, and sugar production.
Learn more about Effects of variables on oxygen production in photosynthesis