Theo teams up with Hassler to track the escaped Abbie leader, Xander confronts Rebecca about her condition, and Jason learns devastating news about Kerry. Theo and Megan disagree over the Abbiesâ intelligence, as the doctor attempts to communicate with their leader.
Why does heart rate and breathing rate increase during exercise. 1. When you exercise your muscles contract more frequently, which means they use more energy. 2.To replace this energy your body needs to do more aerobic respiration, so it needs to take in more oxygen and breathe out more CO2. 3.hy does heart rate and breathing rate increase during exercise. 1. When you exercise your muscles contract more frequently, which means they use more energy. 2.
Short term effects. During exercise, the body needs a supply of oxygen to release energy in the muscles. Respiration increases to provide that oxygen and remove carbon dioxide. This is done by: 1  increasing breathing rate by about three times the normal rate.2  increasing tidal volume by five times the normal rate.hort term effects. During exercise, the body needs a supply of oxygen to release energy in the muscles. Respiration increases to provide that oxygen and remove carbon dioxide. This is done by: 1  increasing breathing rate by about three times the normal rate.