So the independent variable is the thing that is changed in an experiment and you want to change the amount of rainfall the cactus gets as the hypothesis is about rainfall so the answer would be c). Hope this helps :)
Inputs of Cellular respiration are <span>Oxygen (6O</span>₂)<span> and Glucose (C</span>₆<span>H</span>₁₂<span>O</span>₆)<span>
Outputs of Cellular respiration are </span><span>Carbon Dioxide, water, ATP or energy
The main purpose of cellular respiration is to produce ATP. It takes place in the mitochondria.
ATP is the energy of the cells so that it can properly functions inside the body.
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You would want to approach the person and see if they are breathing and call for an ambulance.