Quick Answer. In an officially-sanctioned MLB baseball game, there are 9 innings. If the home team is ahead in the top of the ninth and earns 3 outs, the game ends at 8 1/2 innings. If the game is tied after the away team earns 3 outs in the bottom of the ninth, the game goes into extra innings. Keep Learning.
When you exercise, the muscles you use require more energy. When exercise can be sustained, this demand is met primarily by aerobic means. Aerobic energy production in muscles results in increased gas exchange at the lungs, because more oxygen is taken in and more carbon dioxide is released.
Best Answer: During exercise, the cells burn oxygen faster to produce more energy for the body, which creates more carbon dioxide as a waste product. This increased carbon dioxide level is detected by the brain, which signals for a higher respiration rate to provide more oxygen for the cells.During exercise, the body's need for oxygen increases dramatically and ventilation rate is increased.The depth of breathing also increases during exercise during exercise due to the anatomical dead space of the respiratory system.The anatomical dead space is the air in the nose, mouth, larynx, tracheas, bronchi and bronchioles.his increased carbon dioxide level is detected by the brain, which signals for a higher respiration rate to provide more oxygen for the cells. During exercise, the body's need for oxygen increases dramatically and ventilation rate is increased.