The answer is D) the organ system.
During cellular respiration, the products produced are CO2 and H2O. This is from the addition of oxygen to the glucose or carbon components. Cellular respiration is the opposite of photosynthesis which on the other hand uses <span>CO2 and H2O to produce O2 and energy</span>
D. <span>They all contain carbon as an important part of their structure. Hope this helps you!! =')</span>
Maybe b and c ? It’s makes sense to wear protective clothing and staying indoors
Concentration gradient, size of the particle, and temperature are all factors
