Not sure in this if you go to Google the answer can be found
- Oxygen cycle is the cycle which maintains the level of oxygen in the atmosphere.
- Oxygen from the atmosphere is used up during combustion, respiration and in the formation of oxides of nitrogen.
- This oxygen is returned to the atmosphere by lithosphere.
- This forms the oxygen cycle in nature.
Hope you could get an idea from here.
Doubt clarification - use comment section.
Answer:
ADP is not a reactant required to begin cellular respiration
The humanistic perspective is the one responsible of
emphasizing the value or importance of self-determination because this
perspective focuses more on human behavior that a person possess in which are
mostly good and how they are affected with their good human behavior.