Set up your test tubes so that one test tube has a snail. One test tube has a plant. One test tube has a snail and a plant. One test tube has neither a snail nor a plant.
Click "Show Oxygen and CO2 values (in ppm)"
Keep the light on.
Press Play.
Question 2
2.
Consider: What is the relationship between cellular respiration and photosynthesis? How did this experiment demonstrate that relationship?