The answer is oropharynx. The oropharynx is the center some portion of the pharynx (throat) behind the mouth. It incorporates the accompanying: Back 33% of the tongue. A delicate sense of taste. Side and back dividers of the throat.
The answer to this question is lactic acid. The reason why sports psychologists would need to look for a buildup of this chemical is because it is the chemical that produces pain or "feeling the burn" in an exercise when someone pushes their limit. Also, after so long, a person with a lactic acid buildup needs to take a break because high levels of lactic acid is dangerous for the bloodstream.
Bottom to top is: 1. troposphere 2. stratosphere 3. mesosphere 4. thermosphere
The Krebs cycle is the complete BREAKDOWN of glucose and takes place during cell respiration in both plants and animals.
The Calvin cycle FORMS sugar and takes place during photosynthesis in the Stroma of plant cells.
