Respuesta :

Answer:

The factor under study here is the gas inside of the bottles.

Explanation:

Cellular respiration is one of the key biological processes that are literally sustaining life. It occurs in every living cell in order to provide it the energy (in the form of ATP) to carry out the several processes required to function as a cell or as an organism as a whole.  

Answer:

Gas which is present makes the three bottles different from one another. There are three factors which is used for testing of cellular respiration such as amount of oxygen consumed during this process, amount of glucose used and amount of carbondioxide produced during cellular respiration. During cellular respiration, oxygen used in order to break down glucose and releases high amount of energy with the waste materials such as carbondioxide gas.

Explanation:

Gas <3