<span>Some of the time under some condition</span>
The word that describes a process that can only happen in the presence of Oxygen (such as the final stage of respiration, the <em />Electron Transport Chain) is Aerobic.
Conversely, if a process does not require the presence of Oxygen (such as glycolysis, the first stage of respiration) we can say that it is anaerobic.
Which category includes humans and all other animals
Answer C) consumers
Explanation : consumers depends on plants or other animals to feed themselves.
Hope this helps!
Light-dependent reactions is the awnser