Answer:
Describe the factors that influence the level of cardiorespiratory fitness a person is able to achieve?
Explanation:
The factors that influence cardiorespiratory fitness are age, gender, genetics, body composition, and a person's level of conditioning. Aerobic exercise forces the body to provide extra oxygen to the muscles.
I did not understand the question and I do not think this a finished question.
Answer:
Options B and D
Explanation:
In animals, gaseous exchange takes place in the alveoli in the lungs. Generally, animals breath-out (exhale) carbon dioxide and breath-in (inhale) oxygen. Thus, carbon moves from the blood in the form of carbon dioxide into the alveoli in the lungs while the oxygen inhaled moves from the alveoli in the lungs to the blood where it is transported round the body as oxyhaemoglobin.
When you swallow, a flap called the epiglottis moves to block the entrance of food particles into your larynx and lungs. The muscles of the larynx pull upward to assist with this movement. They also tightly close during swallowing. That prevents food from entering your lungs.
