

What gas is needed for photosynthesis?
The BTB in test tube 1 turned yellow after 24 hours, this indicates that the carbon dioxide levels are
The BTB in test tube 2 turned green after 24 hours, this indicates that the carbon dioxide levels are
The BTB in test tube 3 turned blue after 24 hours, this indicates that the carbon dioxide levels are

What biological process is occuring in test tube #1 (just a snail)

According to the graph, as time goes by what happens to the amount of oxygen molecules used?
What gas is produced during photosynthesis?
What gas is needed for cellular respiration?
What gas is produced during cellular respiration?
What biological process is occuring in test tube #2 (snail and the plant)
As oxygen is used, the breakdown of glucose will
As oxygen is used, the production of carbon dioxide will
As glucose is broken down, what is produced by the cell?
If the amount of oxygen in a person starts to decrease, what will happen to the production of ATP?