It is the esophagus! It moves the air from the nose to the lungs.
Cardiorespiratory fitness is a measure of how well your body is able to transport oxygen to your muscles during prolonged exercise, and also of how well your muscles are able to absorb and use the oxygen, once it has been delivered, to generate adenosine triphosphate (ATP<span>) energy via cellular respiration (cellular respiration is a chemical process in your body's cells that converts the energy stored in the food you eat into the </span>ATP<span> form of energy that is recruited for use by your muscles). Essentially, your cardiorespiratory fitness level is a measure of the strength of your aerobic energy system. If you haven't already read the </span>Exercise Energy Systems<span> article you can do so to get a better understanding of what </span>ATP<span> is, what cellular respiration is, and what the aerobic energy system is (in addition to your body's other two energy systems).</span>
im pretty sure its In the absence of carbohydrates in the diet your body will convert protein (or other non-carbohydrate substances) into glucose, so it's not just carbohydrates that can raise your blood sugar and insulin levels. If you consume more calories than you burn from whatever source, you will gain weight. btw thats from google
Answer:
natural ammunity
Explanation:
immunity possessed by a species or race that is present in an individual at birth prior to exposure to a pathogen or antigen.
